83.01% is the change from 459 to 840
Calculation steps:
[( 840 - 459 ) ÷ 459] x 100 = 83.01%
Formula
Percentage change = [(840 - 459) / 459] x 100
Subtract the new number by the original number
840 - 459 = 381
381 ÷ 459 = 0.8300653594771242
0.8300653594771242 x 100 = 83.01%