-16% is the change from 225 to 189
Calculation steps:
[( 189 - 225 ) ÷ 225] x 100 = -16%
Formula
Percentage change = [(189 - 225) / 225] x 100
Subtract the new number by the original number
189 - 225 = -36
-36 ÷ 225 = -0.16
-0.16 x 100 = -16%
Example