-32.14% is the change from 336 to 228
Calculation steps:
[( 228 - 336 ) ÷ 336] x 100 = -32.14%
Formula
Percentage change = [(228 - 336) / 336] x 100
Subtract the new number by the original number
228 - 336 = -108
-108 ÷ 336 = -0.32142857142857145
-0.32142857142857145 x 100 = -32.14%