-87.85% is the change from 502 to 61
Calculation steps:
[( 61 - 502 ) ÷ 502] x 100 = -87.85%
Formula
Percentage change = [(61 - 502) / 502] x 100
Subtract the new number by the original number
61 - 502 = -441
-441 ÷ 502 = -0.8784860557768924
-0.8784860557768924 x 100 = -87.85%