83.04% is the change from 454 to 831
Calculation steps:
[( 831 - 454 ) ÷ 454] x 100 = 83.04%
Formula
Percentage change = [(831 - 454) / 454] x 100
Subtract the new number by the original number
831 - 454 = 377
377 ÷ 454 = 0.8303964757709251
0.8303964757709251 x 100 = 83.04%