-32.34% is the change from 501 to 339
Calculation steps:
[( 339 - 501 ) ÷ 501] x 100 = -32.34%
Formula
Percentage change = [(339 - 501) / 501] x 100
Subtract the new number by the original number
339 - 501 = -162
-162 ÷ 501 = -0.32335329341317365
-0.32335329341317365 x 100 = -32.34%