97.54% is the change from 325 to 642
Calculation steps:
[( 642 - 325 ) ÷ 325] x 100 = 97.54%
Formula
Percentage change = [(642 - 325) / 325] x 100
Subtract the new number by the original number
642 - 325 = 317
317 ÷ 325 = 0.9753846153846154
0.9753846153846154 x 100 = 97.54%