Waterworks gross profit
Waterworks gross profit increased $13 million, or 31.4%, to $54 million in the six months ended July 30, 2022 from $41 million in the six months ended July 31, 2021. As a percentage of net revenues, Waterworks gross margin increased 410 basis points to 54.0% of net revenues in the six months ended July 30, 2022 from 49.9% of net revenues in the six months ended July 31, 2021 primarily driven by higher revenues, favorable changes in product mix, and leverage in Waterworks occupancy costs, offset by an increase in shipping costs related to customer deliveries.
Selling, general and administrative expenses
Consolidated selling, general and administrative expenses increased $124 million, or 27.2%, to $582 million in the six months ended July 30, 2022 compared to $458 million in the six months ended July 31, 2021.
RH Segment selling, general and administrative expenses
RH Segment selling, general and administrative expenses increased $112 million, or 26.1%, to $540 million in the six months ended July 30, 2022 compared to $428 million in the six months ended July 31, 2021.
RH Segment selling, general and administrative expenses for the six months ended July 30, 2022 include $12 million of employer payroll tax expense associated with Mr. Friedman’s stock option exercise during the first quarter of fiscal 2022, amortization of non-cash compensation of $10 million related to a fully vested option grant made to Mr. Friedman in October 2020, $8.0 million related to asset impairments, $7.5 million of professional fees which were contingent upon the completion of our debt transactions related to the 2023 Notes and 2024 Notes and $0.6 million related to product recalls.
RH Segment selling, general and administrative expenses for the six months ended July 31, 2021 include amortization of the non-cash compensation of $12 million related to the option grant made to Mr. Friedman in October 2020, $7.4 million related to asset impairments and $0.4 million related to severance costs and related payroll taxes associated with reorganizations.
RH Segment selling, general and administrative expenses would have been 27.1% and 23.1% of net revenues for the six months ended July 30, 2022 and July 31, 2021, respectively, excluding the costs incurred in connection with the adjustments mentioned above. The increase in selling, general and administrative expenses as a percentage of net revenues was primarily driven by increased advertising costs due to the mailing of the new RH Contemporary Source Book, the launch of The World of RH, as well as higher employment and employment-related costs, occupancy costs, professional fees and pre-opening costs.
Waterworks selling, general and administrative expenses
Waterworks selling, general and administrative expenses increased $12 million, or 41.8%, to $42 million in the six months ended July 30, 2022 compared to $30 million in the six months ended July 31, 2021. Waterworks selling, general and administrative expenses were 42.5% and 36.3% of net revenues for the six months ended July 30, 2022 and July 31, 2021, respectively.
Waterworks selling, general and administrative expenses for the six months ended July 30, 2022 include $3.5 million in compensation settlements related to the Rollover Units and Profit Interest Units and a $0.2 million asset impairment. Waterworks selling, general and administrative expenses for the six months ended July 31, 2021 include $0.5 million related to product recalls.
Excluding the adjustments mentioned above, Waterworks selling, general and administrative expenses would have been 38.8% and 35.7% of net revenues for the six months ended July 30, 2022 and July 31, 2021.