-24.44% is the change from 225 to 170
Calculation steps:
[( 170 - 225 ) ÷ 225] x 100 = -24.44%
Formula
Percentage change = [(170 - 225) / 225] x 100
Subtract the new number by the original number
170 - 225 = -55
-55 ÷ 225 = -0.24444444444444444
-0.24444444444444444 x 100 = -24.44%