-2.15% is the change from 233 to 228
Calculation steps:
[( 228 - 233 ) ÷ 233] x 100 = -2.15%
Formula
Percentage change = [(228 - 233) / 233] x 100
Subtract the new number by the original number
228 - 233 = -5
-5 ÷ 233 = -0.02145922746781116
-0.02145922746781116 x 100 = -2.15%