-83.46% is the change from 254 to 42
Calculation steps:
[( 42 - 254 ) ÷ 254] x 100 = -83.46%
Formula
Percentage change = [(42 - 254) / 254] x 100
Subtract the new number by the original number
42 - 254 = -212
-212 ÷ 254 = -0.8346456692913385
-0.8346456692913385 x 100 = -83.46%