155.38% is the change from 325 to 830
Calculation steps:
[( 830 - 325 ) ÷ 325] x 100 = 155.38%
Formula
Percentage change = [(830 - 325) / 325] x 100
Subtract the new number by the original number
830 - 325 = 505
505 ÷ 325 = 1.5538461538461539
1.5538461538461539 x 100 = 155.38%