Final answer:
Erza's sales revenue was $95,000.
Step-by-step explanation:
The contribution margin ratio is calculated by dividing the contribution margin (sales revenue minus variable costs) by the sales revenue. In this case, the contribution margin ratio is 509. Let's assume the sales revenue is 'x'.
Contribution margin ratio = Contribution margin / Sales revenue
509 = (Sales revenue - Variable costs) / Sales revenue
Using the formula, we can rearrange it to find sales revenue:
Sales revenue - Variable costs = 509 * Sales revenue
Sales revenue - 509 * Sales revenue = Variable costs
Sales revenue * (1 - 509) = Variable costs
Sales revenue = Variable costs / (1 - 509)
Using the given information, the fixed costs are $24,500 and the profit is $23,000. We can calculate the variable costs:
Variable costs = Profit + Fixed costs
Variable costs = $23,000 + $24,500 = $47,500
Now we can calculate the sales revenue:
Sales revenue = $47,500 / (1 - 509) = $95,000