Sirius Inc. shows the following account balances prior to closing their books at the end of

the year.

A physical count of inventory at the period end showed a value of inventory on hand of

$$60,000.$ Other operating expenses, not already shown above $($if any$)$ for the period totaled

$$21,000.$

Compute the following $(10$ marks$)$:

a$.$ Net Sales

b$.$ Net Purchases

c$.$ Cost of Goods Sold

d$.$ Gross Profit

e$.$ Net Income