David$$s YardToys, Inc. has earnings before interest and taxes $($EBIT$)$ of $$750,000,$ depreciation expense of $$12,500,$ current assets of $$2,000,000$ and current liabilities of $$1,812,500$ in $2021.$ Similarly, in $2020$ David$$s YardToys, Inc. had current assets of $$1,875,000$ and current liabilities of $$1,750,000.$ Investment or change in Land and PP&E from $2020$ to $2021$ is $$187,500,$ and $$93,750$ respectively. The marginal tax rate for David$$s YardToys, Inc. is $21\%.$

Using the data above, compute the change in net working capital of for the firm from $2020$ to $2021.$