-89.09% is the change from 715 to 78
Calculation steps:
[( 78 - 715 ) ÷ 715] x 100 = -89.09%
Formula
Percentage change = [(78 - 715) / 715] x 100
Subtract the new number by the original number
78 - 715 = -637
-637 ÷ 715 = -0.8909090909090909
-0.8909090909090909 x 100 = -89.09%