-20.86% is the change from 302 to 239
Calculation steps:
[( 239 - 302 ) ÷ 302] x 100 = -20.86%
Formula
Percentage change = [(239 - 302) / 302] x 100
Subtract the new number by the original number
239 - 302 = -63
-63 ÷ 302 = -0.20860927152317882
-0.20860927152317882 x 100 = -20.86%