-36.33% is the change from 501 to 319
Calculation steps:
[( 319 - 501 ) ÷ 501] x 100 = -36.33%
Formula
Percentage change = [(319 - 501) / 501] x 100
Subtract the new number by the original number
319 - 501 = -182
-182 ÷ 501 = -0.36327345309381237
-0.36327345309381237 x 100 = -36.33%