86.31% is the change from 453 to 844
Calculation steps:
[( 844 - 453 ) ÷ 453] x 100 = 86.31%
Formula
Percentage change = [(844 - 453) / 453] x 100
Subtract the new number by the original number
844 - 453 = 391
391 ÷ 453 = 0.8631346578366446
0.8631346578366446 x 100 = 86.31%