-41.54% is the change from 390 to 228
Calculation steps:
[( 228 - 390 ) ÷ 390] x 100 = -41.54%
Formula
Percentage change = [(228 - 390) / 390] x 100
Subtract the new number by the original number
228 - 390 = -162
-162 ÷ 390 = -0.4153846153846154
-0.4153846153846154 x 100 = -41.54%