43.71% is the change from 421 to 605
Calculation steps:
[( 605 - 421 ) ÷ 421] x 100 = 43.71%
Formula
Percentage change = [(605 - 421) / 421] x 100
Subtract the new number by the original number
605 - 421 = 184
184 ÷ 421 = 0.43705463182897863
0.43705463182897863 x 100 = 43.71%