97.58% is the change from 331 to 654
Calculation steps:
[( 654 - 331 ) ÷ 331] x 100 = 97.58%
Formula
Percentage change = [(654 - 331) / 331] x 100
Subtract the new number by the original number
654 - 331 = 323
323 ÷ 331 = 0.9758308157099698
0.9758308157099698 x 100 = 97.58%