-43.11% is the change from 501 to 285
Calculation steps:
[( 285 - 501 ) ÷ 501] x 100 = -43.11%
Formula
Percentage change = [(285 - 501) / 501] x 100
Subtract the new number by the original number
285 - 501 = -216
-216 ÷ 501 = -0.4311377245508982
-0.4311377245508982 x 100 = -43.11%