101.42% is the change from 422 to 850
Calculation steps:
[( 850 - 422 ) ÷ 422] x 100 = 101.42%
Formula
Percentage change = [(850 - 422) / 422] x 100
Subtract the new number by the original number
850 - 422 = 428
428 ÷ 422 = 1.014218009478673
1.014218009478673 x 100 = 101.42%