-42.03% is the change from 502 to 291
Calculation steps:
[( 291 - 502 ) ÷ 502] x 100 = -42.03%
Formula
Percentage change = [(291 - 502) / 502] x 100
Subtract the new number by the original number
291 - 502 = -211
-211 ÷ 502 = -0.4203187250996016
-0.4203187250996016 x 100 = -42.03%