
Serge M. answered 12/11/16
Tutor
5
(11)
PhD and CPE with 40 years of experience teaching accounting
Sales of 30 percent
Sales revenue . . .750 x P25 = P18,750
Cost of goods sold 750 x $16.50 = 12,375
Gross margin . . . .. = 6,375
Sales of 70%
Sales revenue .. 1,750 X ? = . . . . .86,675
Cost of goods sold 1,750 + 16.50 = 28,875
Gross profit . . . . . . . . . . . . . . . . 57,750
Therefore Sales revenue is 57,750 + 28,875 = 86,675, which would mean that the books were sold at49.50 each (86,675/1,750)
Now you can calculate total gross margin, but it is not possible to calculate income because you provide no information about operating costs.
The change in inventory means that the company bought 20,000 more books which it did not yet sell.