83.7% is the change from 454 to 834
Calculation steps:
[( 834 - 454 ) ÷ 454] x 100 = 83.7%
Formula
Percentage change = [(834 - 454) / 454] x 100
Subtract the new number by the original number
834 - 454 = 380
380 ÷ 454 = 0.8370044052863436
0.8370044052863436 x 100 = 83.7%