-7.02% is the change from 228 to 212
Calculation steps:
[( 212 - 228 ) ÷ 228] x 100 = -7.02%
Formula
Percentage change = [(212 - 228) / 228] x 100
Subtract the new number by the original number
212 - 228 = -16
-16 ÷ 228 = -0.07017543859649122
-0.07017543859649122 x 100 = -7.02%