-77.4% is the change from 531 to 120
Calculation steps:
[( 120 - 531 ) ÷ 531] x 100 = -77.4%
Formula
Percentage change = [(120 - 531) / 531] x 100
Subtract the new number by the original number
120 - 531 = -411
-411 ÷ 531 = -0.7740112994350282
-0.7740112994350282 x 100 = -77.4%