-25.38% is the change from 331 to 247
Calculation steps:
[( 247 - 331 ) ÷ 331] x 100 = -25.38%
Formula
Percentage change = [(247 - 331) / 331] x 100
Subtract the new number by the original number
247 - 331 = -84
-84 ÷ 331 = -0.2537764350453172
-0.2537764350453172 x 100 = -25.38%