-79.72% is the change from 715 to 145
Calculation steps:
[( 145 - 715 ) ÷ 715] x 100 = -79.72%
Formula
Percentage change = [(145 - 715) / 715] x 100
Subtract the new number by the original number
145 - 715 = -570
-570 ÷ 715 = -0.7972027972027972
-0.7972027972027972 x 100 = -79.72%