Final answer:
The contribution margin for Iyekqv603 Corp. is calculated by subtracting total variable costs from the sales price per book, which includes variable selling and administrative expenses. The contribution margin per book is $62.90.
Step-by-step explanation:
To calculate the contribution margin for Iyekqv603 Corp., we need to subtract the variable costs from the sales price per book. The average sales price is given as $70 per book, variable selling expenses are $5 per book, and variable administrative expenses are 3% of sales. Thus, variable administrative expenses amount to $70 * 3/100 = $2.10 per book.
Now, we can calculate the contribution margin per book as follows:
Sales Price per book = $70
Variable Selling Expenses per book = $5
Variable Administrative Expenses per book = $70 * 3% = $2.10
Total Variable Costs per book = $5 + $2.10 = $7.10
Contribution Margin per book = Sales Price per book - Total Variable Costs per book = $70 - $7.10 = $62.90
The contribution margin represents the portion of sales revenue that is not consumed by variable costs and contributes to covering fixed costs.