-77.97% is the change from 531 to 117
Calculation steps:
[( 117 - 531 ) ÷ 531] x 100 = -77.97%
Formula
Percentage change = [(117 - 531) / 531] x 100
Subtract the new number by the original number
117 - 531 = -414
-414 ÷ 531 = -0.7796610169491526
-0.7796610169491526 x 100 = -77.97%