-18.42% is the change from 228 to 186
Calculation steps:
[( 186 - 228 ) ÷ 228] x 100 = -18.42%
Formula
Percentage change = [(186 - 228) / 228] x 100
Subtract the new number by the original number
186 - 228 = -42
-42 ÷ 228 = -0.18421052631578946
-0.18421052631578946 x 100 = -18.42%