101.9% is the change from 420 to 848
Calculation steps:
[( 848 - 420 ) ÷ 420] x 100 = 101.9%
Formula
Percentage change = [(848 - 420) / 420] x 100
Subtract the new number by the original number
848 - 420 = 428
428 ÷ 420 = 1.019047619047619
1.019047619047619 x 100 = 101.9%