-85.46% is the change from 502 to 73
Calculation steps:
[( 73 - 502 ) ÷ 502] x 100 = -85.46%
Formula
Percentage change = [(73 - 502) / 502] x 100
Subtract the new number by the original number
73 - 502 = -429
-429 ÷ 502 = -0.8545816733067729
-0.8545816733067729 x 100 = -85.46%