-86.79% is the change from 651 to 86
Calculation steps:
[( 86 - 651 ) ÷ 651] x 100 = -86.79%
Formula
Percentage change = [(86 - 651) / 651] x 100
Subtract the new number by the original number
86 - 651 = -565
-565 ÷ 651 = -0.8678955453149002
-0.8678955453149002 x 100 = -86.79%