Exercise $7$

Delightful Discs has the following inventory data:

Nov. $1$

Inventory $30$ units @ $$6\mathrm{.}00$ each

$8$

Purchase $120$ units @ $$6\mathrm{.}45$ each

$17$ Purchase $60$ units @ $$6\mathrm{.}30$ each

$25$ Purchase $90$ units@$$6\mathrm{.}60$ each

A physical count of merchandise inventory on November $30$ reveals that there are $100$ units on hand. Cost of goods sold under FIFO periodic inventory system is

a$.$ $$657$

b$.$ $$632$

c$.$ $$1,269$

d$.$ $$1,295$ need answer with explaiation please