-90.29% is the change from 659 to 64
Calculation steps:
[( 64 - 659 ) ÷ 659] x 100 = -90.29%
Formula
Percentage change = [(64 - 659) / 659] x 100
Subtract the new number by the original number
64 - 659 = -595
-595 ÷ 659 = -0.9028831562974203
-0.9028831562974203 x 100 = -90.29%