-33.07% is the change from 254 to 170
Calculation steps:
[( 170 - 254 ) ÷ 254] x 100 = -33.07%
Formula
Percentage change = [(170 - 254) / 254] x 100
Subtract the new number by the original number
170 - 254 = -84
-84 ÷ 254 = -0.33070866141732286
-0.33070866141732286 x 100 = -33.07%
Example