-79.75% is the change from 632 to 128
Calculation steps:
[( 128 - 632 ) ÷ 632] x 100 = -79.75%
Formula
Percentage change = [(128 - 632) / 632] x 100
Subtract the new number by the original number
128 - 632 = -504
-504 ÷ 632 = -0.7974683544303798
-0.7974683544303798 x 100 = -79.75%