-87.41% is the change from 659 to 83
Calculation steps:
[( 83 - 659 ) ÷ 659] x 100 = -87.41%
Formula
Percentage change = [(83 - 659) / 659] x 100
Subtract the new number by the original number
83 - 659 = -576
-576 ÷ 659 = -0.874051593323217
-0.874051593323217 x 100 = -87.41%