-79.2% is the change from 577 to 120
Calculation steps:
[( 120 - 577 ) ÷ 577] x 100 = -79.2%
Formula
Percentage change = [(120 - 577) / 577] x 100
Subtract the new number by the original number
120 - 577 = -457
-457 ÷ 577 = -0.7920277296360485
-0.7920277296360485 x 100 = -79.2%