-79.49% is the change from 624 to 128
Calculation steps:
[( 128 - 624 ) ÷ 624] x 100 = -79.49%
Formula
Percentage change = [(128 - 624) / 624] x 100
Subtract the new number by the original number
128 - 624 = -496
-496 ÷ 624 = -0.7948717948717948
-0.7948717948717948 x 100 = -79.49%