-91.05% is the change from 715 to 64
Calculation steps:
[( 64 - 715 ) ÷ 715] x 100 = -91.05%
Formula
Percentage change = [(64 - 715) / 715] x 100
Subtract the new number by the original number
64 - 715 = -651
-651 ÷ 715 = -0.9104895104895104
-0.9104895104895104 x 100 = -91.05%