-15.79% is the change from 228 to 192
Calculation steps:
[( 192 - 228 ) ÷ 228] x 100 = -15.79%
Formula
Percentage change = [(192 - 228) / 228] x 100
Subtract the new number by the original number
192 - 228 = -36
-36 ÷ 228 = -0.15789473684210525
-0.15789473684210525 x 100 = -15.79%