84.25% is the change from 457 to 842
Calculation steps:
[( 842 - 457 ) ÷ 457] x 100 = 84.25%
Formula
Percentage change = [(842 - 457) / 457] x 100
Subtract the new number by the original number
842 - 457 = 385
385 ÷ 457 = 0.8424507658643327
0.8424507658643327 x 100 = 84.25%