-25.08% is the change from 331 to 248
Calculation steps:
[( 248 - 331 ) ÷ 331] x 100 = -25.08%
Formula
Percentage change = [(248 - 331) / 331] x 100
Subtract the new number by the original number
248 - 331 = -83
-83 ÷ 331 = -0.25075528700906347
-0.25075528700906347 x 100 = -25.08%