REVISED COMPUTATIONAL MATERIALS FOR FLOATER ONLY TO 10% CALL SUMMARY REPORT FOR ISSUERS CS FIRST BOSTON AMRESCO HOME EQUITY LOAN TRUST 1996-4 Thu Aug 15, 1996 AMRESCO RESIDENTIAL SECURITIES $311,080,369 Current Wam = 349 / Avg. WAC = 10.0734 / Seasoning = 0 Gross Margin = NaN bp / Life Cap = 16.88 / Life Floor = NaN Priced at 115.00 @BASE Accrual Date: 8/ 1/96 Settlement Date: 8/27/96 First Pay Date: 9/25/96 ------------------------------------------------------------ Class Original Coupon Avg. CBE 1st Last Mod. Name Par % Life Yield Price Pay Pay Dur. ------------------------------------------------------------ A1 9,163,000 6.15 0.71 5.622 100-00 9/96 12/97 0.67 A2 23,277,000 6.65 1.21 6.346 100-00 9/96 11/98 1.12 A3 16,761,000 6.90 3.12 6.831 100-00 11/98 10/00 2.72 A4 11,360,000 7.20 5.25 7.196 100-00 10/00 3/03 4.23 A5 12,372,000 7.70 8.24 7.738 100-00 3/03 6/05 5.89 A6 238,146,000 FLOAT 3.50 5.895 100-00 9/96 6/05 2.91 ------------------------------------------------------------ A6 Price: 100-00 Coupon: FLOAT Original Par: 238,146,000 ----------------------------------------------------------------------------- 0 50 100 115 150 200 Performance at: @BASE @BASE @BASE @BASE @BASE @BASE Average Life: 20.99 7.62 4.02 3.50 2.68 1.97 First Prin Pay: 10/96 9/96 9/96 9/96 9/96 9/96 Last Prin Pay: 2/25 5/15 10/06 6/05 4/03 5/01 ----------------------------------------------------------------------------- FLOATING RATE COLLATERAL SUMMARY Total Number of Loans 1,966 Level Pay/Balloon **%/ 0% Total Outstanding Loan Balance $205,146,825 1st Lien 100% RANGE % TOTAL # LOANS Avg Loan Balance $ 104,347.32 greater than or equal to 49,999.99 7.31 434 Highest Balance $ 762,500.00 50,000 - 74,999.99 12.69 416 Lowest Balance $ 10,265.36 75,000 - 99,999.99 14.34 336 100,000 - 149,999.99 24.92 425 150,000 - 199,999.99 14.23 169 200,000 - 349,999.99 19.38 153 350,000 - 762,500.00 7.13 33 RANGE % TOTAL # LOANS Wtg Avg Coupon 9.90% greater than or equal to 7.99% 9.00 127 Highest Coupon 17.80% 8.00% - 8.99% 20.17 320 Lowest Coupon 6.50% 9.00% - 9.99% 32.10 554 10.00% - 10.99% 20.46 437 11.00% - 11.99% 9.52 251 12.00% - 17.80% 8.75 277 RANGE LEVEL PAY BALLOON Wtd Avg Remaining Term 352.22 1 - 120 .16% .00% Highest Remaining Term 360 121 - 180 2.16% .00% Lowest Remaining Term 117 181 - 240 1.18% .00% 241 - 360 96.50% .00% Wtd Avg Seasoning 2.09 Highest Seasoning 16 Lowest Seasoning 0 RANGE % TOTAL # LOANS Wtd Avg Orig LTV 72.85% 0.01% - 50.00% 3.50 122 Highest LTV 90.00% 50.01% - 60.00% 8.48 201 Lowest LTV 10.00% 60.01% - 70.00% 20.74 463 70.01% - 80.00% 57.13 1,025 80.01% - 90.00% 10.14 155 Property Type Occupancy Status Single Family 83.42% Primary Residence 89.85% Two to Four Family 6.74% Other 10.15% PUD 5.93% Condo 3.56% Other .36% Geographics CA 44%, IL 9%, CO 7%, UT 4%, MI 4% FLOATING RATE COLLATERAL SUMMARY CONTINUED 6 Month LIBOR 100.00% Wtg Avg Months to Next Rate Roll 7.04 RANGE % TOTAL # LOANS Wtg Avg Margin 6.18% greater than or equal to 3.99% 3.14 55 Highest Margin 10.30% 4.00% - 4.99% 10.52 190 Lowest Margin 3.63% 5.00% - 5.99% 23.63 443 6.00% - 6.99% 36.49 701 7.00% - 7.99% 25.33 551 8.00% - 10.30% .89 26 RANGE % TOTAL # LOANS Wtg Avg Life Cap 16.88% greater than or equal to 14.99% 9.25 134 Highest Life Cap 24.80% 15.00% - 15.99% 20.43 316 Lowest Life Cap 8.99% 16.00% - 16.99% 31.62 552 17.00% - 17.99% 20.46 437 18.00% - 18.99% 9.53 252 19.00% - 24.80% 8.71 275 CAP VALUE % TOTAL # LOANS Wtg Avg Periodic Cap 1.51% 1.00% 1.76 24 Highest Periodic Cap 3.00% 1.50% 96.78 1,915 Lowest Periodic Cap 1.00% 3.00% 1.46 27 BOND PROFILE SUMMARY -------------------------------------------------------------------------- Class Original Coupon Avg. CBE 1st Last Mod. Final Name Par % Life Yield Price Pay Pay Dur. Maturity -------------------------------------------------------------------------- To Maturity A1 9,163,000 6.00 0.72 6.072 100-00 9/96 12/97 0.68 7/99 A2 23,277,000 6.70 1.20 6.360 100-00 9/96 11/98 1.11 9/15 A3 16,761,000 6.90 3.10 6.816 100-00 11/98 10/00 2.70 6/21 A4 11,360,000 7.20 5.20 7.185 100-00 10/00 2/03 4.20 12/23 A5 12,372,000 7.70 9.61 7.809 100-00 2/03 1/15 6.47 9/27 A6 238,146,000 FLOAT 3.80 FLOAT 100-00 9/96 12/15 3.09 9/27 ---------------------------- To Call A5 12,372,000 7.70 7.11 7.720 100-00 2/03 10/03 5.30 9/27 A6 238,146,000 FLOAT 3.30 FLOAT 100-00 9/96 10/03 2.81 9/27 ------------------------------------------------------------------------- (1) Fixed Rate Certificates (Class A1-A5) and Floating Rate Certificates Prepayment Curve (PPC)= 115% of PPC. A 100% Prepayment Assumption assumes prepayments start at 5% in month 1,rise by exactly 1.364% per month to 20% CPR in month 12 at 20% CPR thereafter on a seasoning adjusted basis. (2) Coupon and price are assumed for computational materials. Class A5 coupon steps up .75% at clean-up call if clean-up call is not exercised. Class A6 margin will double if at the clean-up call if the clean-up call is not exercised. (3) Class A-5 and A-6 are subject to an available funds cap equal to the Net WAC on the collateral. BOND PROFILE SUMMARY - ----------------------------------------------------------------------------- Percent of PPC: 0 75 100 115 150 200 Implied Seasoned CPR 0 15 20 23 30 40 - ----------------------------------------------------------------------------- A1 Price: 100-00 Coupon: 6.0000 Original Par: 9,163,000 ----------------------------------------------------------------------------- Average Life: 1.55 0.72 0.72 0.72 0.72 0.71 Duration: 1.42 0.68 0.68 0.68 0.68 0.67 First Prin Pay: 9/96 9/96 9/96 9/96 9/96 9/96 Last Prin Pay: 7/99 12/97 12/97 12/97 12/97 11/97 ----------------------------------------------------------------------------- A2 Price: 100-00 Coupon: 6.7000 Original Par: 23,277,000 ----------------------------------------------------------------------------- Average Life: 13.65 2.86 1.41 1.20 0.88 0.61 Duration: 8.58 2.50 1.29 1.11 0.83 0.58 First Prin Pay: 7/04 9/96 9/96 9/96 9/96 9/96 Last Prin Pay: 9/15 7/01 3/99 11/98 4/98 10/97 ----------------------------------------------------------------------------- A3 Price: 100-00 Coupon: 6.9000 Original Par: 16,761,000 ----------------------------------------------------------------------------- Average Life: 22.19 6.84 3.57 3.10 2.34 1.70 Duration: 11.03 5.27 3.06 2.70 2.10 1.56 First Prin Pay: 9/15 7/01 3/99 11/98 4/98 11/97 Last Prin Pay: 6/21 9/05 6/01 10/00 10/99 11/98 ----------------------------------------------------------------------------- BOND PROFILE SUMMARY - ----------------------------------------------------------------------------- Percent of PPC: 0 75 100 115 150 200 Implied Seasoned CPR 0 15 20 23 30 40 - ----------------------------------------------------------------------------- A4 Price: 100-00 Coupon: 7.2000 Original Par: 11,360,000 ----------------------------------------------------------------------------- Average Life: 26.14 11.21 6.00 5.20 3.92 2.81 Duration: 11.45 7.44 4.71 4.20 3.30 2.46 First Prin Pay: 6/21 9/05 6/01 10/00 10/99 11/98 Last Prin Pay: 12/23 4/10 2/04 2/03 7/01 2/00 ----------------------------------------------------------------------------- A5 Price: 100-00 Coupon: 7.7000 Original Par: 12,372,000 ----------------------------------------------------------------------------- Average Life: 28.48 19.01 11.01 9.61 7.27 5.22 Duration: 11.21 9.56 7.07 6.47 5.31 4.11 First Prin Pay: 12/23 4/10 2/04 2/03 7/01 2/00 Last Prin Pay: 2/26 1/25 7/17 1/15 9/10 10/06 -------------------------------- To Call Average Life: 27.85 15.38 8.25 7.11 5.37 3.88 Duration: 11.14 8.73 5.91 5.30 4.25 3.24 First Prin Pay: 12/23 4/10 2/04 2/03 7/01 2/00 Last Prin Pay: 7/24 4/12 12/04 10/03 1/02 7/00 ----------------------------------------------------------------------------- (3) Class A-5 is subject to an available funds cap equal to the Net WAC on the collateral. (4) Class A-5 coupon steps up .75% at clean-up call is clean-up call is not exercised. BOND PROFILE SUMMARY - ----------------------------------------------------------------------------- Percent of PPC: 0 75 100 115 150 200 Implied Seasoned CPR 0 15 20 23 30 40 - ----------------------------------------------------------------------------- A6 Price: 100-00 Coupon: FLOAT Original Par: 238,146,000 ----------------------------------------------------------------------------- To Maturity Average Life: 21.04 8.04 4.36 3.80 2.90 2.13 Duration: 11.27 5.53 3.45 3.09 2.46 1.88 First Prin Pay: 9/96 9/96 9/96 9/96 9/96 9/96 Last Prin Pay: 4/26 3/25 6/18 12/15 5/11 3/07 To Call Average Life: 20.92 7.24 3.80 3.30 2.53 1.87 Duration: 11.25 5.27 3.17 2.81 2.22 1.69 First Prin Pay: 9/96 9/96 9/96 9/96 9/96 9/96 Last Prin Pay: 7/24 4/12 12/04 10/03 1/02 7/00 ----------------------------------------------------------------------------- Class A-6 is subject to an available funds cap equal to the Net WAC on the collateral. Class A-6 margin will double at clean-up call is clean-up call is not exercised. AMRESCO 1996-4 CS First Boston Computational Materials The above analysis is not intended to be a prospectus and any investment decision with respect to the security should be made by you based solely upon all of the information contained in the final prospectus. Under no circumstances shall the information presented constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such jurisdiction. The securities may not be sold nor may an offer to b uy be accepted prior to the delivery of a final prospectus relating to the securities. The above preliminary description of the underlying assets has been provided by the issuer and has not been independently verified by CS First Boston. All information described above is preliminary, limited in nature and subject to completion or amendment. CS First Boston makes no representations that the above referenced security will actually perform as described in any scenario presented. FIXED RATE COLLATERAL SUMMARY Total Number of Loans 828 Level Pay/Balloon 91%/ 9% Total Outstanding Loan Balance $ 64,933,544 1st Lien 100% RANGE % TOTAL # LOANS Avg Loan Balance $ 78,422.15 greater than or equal to 49,999.99 13.32 242 Highest Balance $ 580,878.97 50,000 - 74,999.99 21.68 225 Lowest Balance $ 11,998.36 75,000 - 99,999.99 21.17 158 100,000 - 149,999.99 27.92 154 150,000 - 199,999.99 8.17 31 200,000 - 580,878.97 7.75 18 RANGE % TOTAL # LOANS Wtg Avg Coupon 10.65% greater than or equal to 8.99% 6.91 43 Highest Coupon 16.75% 9.00% - 9.99% 29.25 202 Lowest Coupon 7.50% 10.00% - 10.99% 32.79 253 11.00% - 11.99% 18.79 176 12.00% - 12.99% 8.03 94 13.00% - 16.75% 4.23 60 RANGE LEVEL PAY BALLOON Wtd Avg Remaining Term 322.76 1 - 120 .00% .00% Highest Remaining Term 360 121 - 180 7.42% 9.02% Lowest Remaining Term 158 181 - 240 1.68% .00% 241 - 360 81.88% .00% Wtd Avg Seasoning 5.63 Highest Seasoning 15 Lowest Seasoning 0 RANGE % TOTAL # LOANS Wtd Avg Orig LTV 67.43% 0.01% - 50.00% 10.60 118 Highest LTV 90.00% 50.01% - 60.00% 14.07 128 Lowest LTV 13.82% 60.01% - 70.00% 32.02 263 70.01% - 80.00% 37.80 291 80.01% - 90.00% 5.51 28 Property Type Occupancy Status Single Family 86.40% Primary Residence 92.11% Two to Four Family 7.38% Other 7.89% PUD 2.94% Condo 2.73% Other .55% Geographics CA 47%, UT 7%, CO 7%, OR 6%, FL 5%