In $2021,$ Brock Brothers, Inc. had gross sales of $ $42,522,300.$ The company's management reported a Returns and Allowances estimate in $2020$ equal to $4\mathrm{.}4\%$ of gross sales. What did Brock Brothers, Inc. report as Net sales in $2021?$

Record your answer rounded to the nearest dollar. Do not include a dollar sign or commas in your answer. For example, record $$1,234,567\mathrm{.}89$ as $1234568.$