301.23% is the change from 81 to 325
Calculation steps:
[( 325 - 81 ) ÷ 81] x 100 = 301.23%
Formula
Percentage change = [(325 - 81) / 81] x 100
Subtract the new number by the original number
325 - 81 = 244
244 ÷ 81 = 3.0123456790123457
3.0123456790123457 x 100 = 301.23%