-73.11% is the change from 502 to 135
Calculation steps:
[( 135 - 502 ) ÷ 502] x 100 = -73.11%
Formula
Percentage change = [(135 - 502) / 502] x 100
Subtract the new number by the original number
135 - 502 = -367
-367 ÷ 502 = -0.7310756972111554
-0.7310756972111554 x 100 = -73.11%