-21.12% is the change from 303 to 239
Calculation steps:
[( 239 - 303 ) ÷ 303] x 100 = -21.12%
Formula
Percentage change = [(239 - 303) / 303] x 100
Subtract the new number by the original number
239 - 303 = -64
-64 ÷ 303 = -0.21122112211221122
-0.21122112211221122 x 100 = -21.12%