-90.73% is the change from 712 to 66
Calculation steps:
[( 66 - 712 ) ÷ 712] x 100 = -90.73%
Formula
Percentage change = [(66 - 712) / 712] x 100
Subtract the new number by the original number
66 - 712 = -646
-646 ÷ 712 = -0.9073033707865169
-0.9073033707865169 x 100 = -90.73%