Accounts receivable changes with bad debts A firm is evaluating an accounts receivable change that would increase bad debts from $2\%$ to $4\%$ of sales. Sales are currently $30,000$ units per month, the selling price is $$20$ per unit, and the variable cost per unit is $$15.$ As a result of the proposed change, sales are forecast to increase to $60,000$ units per'month. If the cost of capital is $0\mathrm{.}75\%$ per month, should the firm change its credit policy?

The cost of the marginal bad debts of the firm is $

$($Round to the nearest dollar.$)$