37%, 33% and 31% of our retail sales in fiscal years 2017, 2018 and 2019, respectively, and approximately 32% of our retail sales for the fiscal quarter ended March 29, 2020. We have also entered into certain chargeback and vendor agreements with Whole Foods. We recorded chargebacks as a net amount from our gross revenue of approximately $256,000 and $402,000 for fiscal years 2018 and 2019, respectively, and approximately $215,000 for the fiscal quarter ended March 29, 2020. Products sold pursuant to the vendor agreement accounted for approximately $915,000, $1.6 million and $1.9 million of our net revenue in fiscal years 2017, 2018 and 2019, respectively, and approximately $503,000 for the fiscal quarter ended March 29, 2020. Our director Glenda Flanagan is an executive vice president and senior advisor at Whole Foods.
Agreements with Sandpebble Builders Preconstruction
In September 2016, we entered into a consulting contract with Sandpebble Builders Preconstruction, Inc., or Sandpebble, for project management services for our initial construction of Egg Central Station, including in relation to design, procurement, scheduling, site control and certifications. In 2019, we entered into a subsequent consulting contract with Sandpebble for similar project management services in connection with our expansion of Egg Central Station. Victor Canseco, the owner and principal of Sandpebble, is the father of Russell Diez-Canseco, our president, chief executive officer and a member of our board of directors. Pursuant to our consulting agreements with Sandpebble, we paid Sandpebble approximately $1.2 million, $211,000 and $556,000 in fiscal 2017, 2018 and 2019, respectively, and $223,000 in the fiscal quarter ended March 29, 2020.
Director Loans
In February 2019, we loaned $3.2 million to Matthew O’Hayer and $800,000 to Jason Jones, which we collectively refer to as the 2019 Director Loans. Each of the 2019 Director Loans was made pursuant to a non-recourse promissory note with interest at a rate per annum calculated at the lower of (i) the maximum applicable non-usurious rate of interest and (ii) the LIBOR rate (as defined in the Credit Facility), as such rate may be in effect from time to time, plus 2%. The initial interest rate on the 2019 Director Loans was 4.78%. Unless a 2019 Director Loan is accelerated in accordance with its terms, we will terminate it upon the earliest to occur of (i) August 7, 2022, (ii) the date of closing of a Liquidity Transaction (as defined in the applicable 2019 Director Loan) and (iii) prior to the time such note would be prohibited by the Sarbanes-Oxley Act.
In connection with his promissory note, Mr. Jones pledged and assigned to us a security interest in 333,561 shares of our common stock held by him.
As security for the payment of our obligations under the Credit Facility, in February 2019 we collaterally assigned and granted a security interest in the 2019 Director Loans to PNC Bank, National Association, including all rights to receive payments under the 2019 Director Loans and all proceeds thereof.
Mr. O’Hayer repaid his 2019 Director Loan in full on November 26, 2019. As of March 29, 2020, the balance of the 2019 Director Loan to Mr. Jones was $836,108, including principal and $36,108 of accrued interest.
Stockholders Agreement
In connection with our convertible preferred stock and common stock financings, we entered into a stockholders agreement, as subsequently amended and restated, which contains, among other things, registration rights, information rights, voting rights with respect to the election of directors, co-sale rights and rights of first refusal, with certain holders of our capital stock. The parties to the stockholders agreement include: entities affiliated with Arborview Capital Partners LP, where our director Karl Khoury is a partner; entities affiliated with Bowie Strategic Investments, Inc., entities affiliated with Inherent Group, LLC, where our former director Anthony Davis is chief executive officer and chief investment officer; entities affiliated with InvestEco Capital Corp; entities affiliated with Manna Tree Partners; entities affiliated with SJF Ventures; and entities affiliated with Sunrise Strategic Partners, LLC.
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