11.64% is the change from 421 to 470
Calculation steps:
[( 470 - 421 ) ÷ 421] x 100 = 11.64%
Formula
Percentage change = [(470 - 421) / 421] x 100
Subtract the new number by the original number
470 - 421 = 49
49 ÷ 421 = 0.1163895486935867
0.1163895486935867 x 100 = 11.64%