1.9% is the change from 420 to 428
Calculation steps:
[( 428 - 420 ) ÷ 420] x 100 = 1.9%
Formula
Percentage change = [(428 - 420) / 420] x 100
Subtract the new number by the original number
428 - 420 = 8
8 ÷ 420 = 0.01904761904761905
0.01904761904761905 x 100 = 1.9%