The sales volume for an online bookstore was 432 books in the first week. Then due to the new policy of tax for on-line shopping, the sales volume dropped to 297 books at the second week. By what percent did the sales volume go down?

Respuesta :

The volume drop is 432-297= 135

135 books is a fraction 135/432 of the original volume 432. That is (x100): 31.25%

So the sales went down by 31.25%