Solution:
Susan earns a commission based on car sales made.
Given:
Total sales made for the month = $387,000
Her commission is calculated based on levels and commision rate for each level.
On the first $100,000, she earns 1.25% commission.
Total sales at this level is $100,000
On the next $200,000, she earns 4.95% commission.
Total sales at this level is $300,000
On the next $87,000, total sales at this level is $387,000. She earns 7.25% commission for sales above $300,000.
Therefore, Susan's total commission received for the month is;
Hence, her commission received in total for the sales made is $17,457.50