397.8% is the change from 91 to 453
Calculation steps:
[( 453 - 91 ) ÷ 91] x 100 = 397.8%
Formula
Percentage change = [(453 - 91) / 91] x 100
Subtract the new number by the original number
453 - 91 = 362
362 ÷ 91 = 3.978021978021978
3.978021978021978 x 100 = 397.8%