Question

Decrease 640 by 24 percent​

Answer 1

486.4

Explanation:

Multiply 640 by the percent and then subtract the percent from the whole since the question is asking for a decrease by 24 percent, not what 24 percent of 640 is.

640 × 0.24 = 153.6

640 - 153.6 = 486.4

Answer 2

486.4

Explanation:

640 - (24% × 640) =

(1 - 24%) × 640 =

(100% - 24%) × 640 =

76% × 640 =

76 ÷ 100 × 640 =

76 × 640 ÷ 100 =

48,640 ÷ 100 =

486.4