-4.39% is the change from 228 to 218
Calculation steps:
[( 218 - 228 ) ÷ 228] x 100 = -4.39%
Formula
Percentage change = [(218 - 228) / 228] x 100
Subtract the new number by the original number
218 - 228 = -10
-10 ÷ 228 = -0.043859649122807015
-0.043859649122807015 x 100 = -4.39%