39.19% is the change from 421 to 586
Calculation steps:
[( 586 - 421 ) ÷ 421] x 100 = 39.19%
Formula
Percentage change = [(586 - 421) / 421] x 100
Subtract the new number by the original number
586 - 421 = 165
165 ÷ 421 = 0.3919239904988123
0.3919239904988123 x 100 = 39.19%