0.48% is the change from 420 to 422
Calculation steps:
[( 422 - 420 ) ÷ 420] x 100 = 0.48%
Formula
Percentage change = [(422 - 420) / 420] x 100
Subtract the new number by the original number
422 - 420 = 2
2 ÷ 420 = 0.004761904761904762
0.004761904761904762 x 100 = 0.48%