-91.07% is the change from 717 to 64
Calculation steps:
[( 64 - 717 ) ÷ 717] x 100 = -91.07%
Formula
Percentage change = [(64 - 717) / 717] x 100
Subtract the new number by the original number
64 - 717 = -653
-653 ÷ 717 = -0.9107391910739191
-0.9107391910739191 x 100 = -91.07%