-7.11% is the change from 225 to 209
Calculation steps:
[( 209 - 225 ) ÷ 225] x 100 = -7.11%
Formula
Percentage change = [(209 - 225) / 225] x 100
Subtract the new number by the original number
209 - 225 = -16
-16 ÷ 225 = -0.07111111111111111
-0.07111111111111111 x 100 = -7.11%