-75.58% is the change from 651 to 159
Calculation steps:
[( 159 - 651 ) ÷ 651] x 100 = -75.58%
Formula
Percentage change = [(159 - 651) / 651] x 100
Subtract the new number by the original number
159 - 651 = -492
-492 ÷ 651 = -0.7557603686635944
-0.7557603686635944 x 100 = -75.58%