just need help with the two that are wrong

A producer of pottery is considering the addition of a new plant to absorb the backlog of demand that now exists. The primary location being considered will have fixed costs of $9,200 per month and variable costs of 70 cents per unit produced. Each item is sold to retailers at a price that averages 90 cents. a. What volume per month is required in order to break even? b-1. What profit would be realized on a monthly volume of 61,000 units? Answer is complete but not entirely correct. b-2. What profit would be realized on a monthly volume of 87,000 units