-23.26% is the change from 331 to 254
Calculation steps:
[( 254 - 331 ) ÷ 331] x 100 = -23.26%
Formula
Percentage change = [(254 - 331) / 331] x 100
Subtract the new number by the original number
254 - 331 = -77
-77 ÷ 331 = -0.2326283987915408
-0.2326283987915408 x 100 = -23.26%