-12.99% is the change from 254 to 221
Calculation steps:
[( 221 - 254 ) ÷ 254] x 100 = -12.99%
Formula
Percentage change = [(221 - 254) / 254] x 100
Subtract the new number by the original number
221 - 254 = -33
-33 ÷ 254 = -0.12992125984251968
-0.12992125984251968 x 100 = -12.99%