The following data are available for Big Box Corporation:

Beginning inventory

$$12,500$

Purchases returns and allowances

$800$

Purchases

$45,000$

Sales

$85,400$

Purchases discounts

$1,200$

Sales returns

$2,000$

Sales discounts

$1,300$

Operating expenses

$31,700$

Ending inventory

$15,000$

Compute:

a$.$ Net purchases

b$.$ Net sales

c$.$ Cost of goods sold

d$.$ Gross profit

e$.$ Net income