1.43% is the change from 421 to 427
Calculation steps:
[( 427 - 421 ) ÷ 421] x 100 = 1.43%
Formula
Percentage change = [(427 - 421) / 421] x 100
Subtract the new number by the original number
427 - 421 = 6
6 ÷ 421 = 0.014251781472684086
0.014251781472684086 x 100 = 1.43%