-80.65% is the change from 651 to 126
Calculation steps:
[( 126 - 651 ) ÷ 651] x 100 = -80.65%
Formula
Percentage change = [(126 - 651) / 651] x 100
Subtract the new number by the original number
126 - 651 = -525
-525 ÷ 651 = -0.8064516129032258
-0.8064516129032258 x 100 = -80.65%