-77.89% is the change from 502 to 111
Calculation steps:
[( 111 - 502 ) ÷ 502] x 100 = -77.89%
Formula
Percentage change = [(111 - 502) / 502] x 100
Subtract the new number by the original number
111 - 502 = -391
-391 ÷ 502 = -0.7788844621513944
-0.7788844621513944 x 100 = -77.89%