59.86% is the change from 421 to 673
Calculation steps:
[( 673 - 421 ) ÷ 421] x 100 = 59.86%
Formula
Percentage change = [(673 - 421) / 421] x 100
Subtract the new number by the original number
673 - 421 = 252
252 ÷ 421 = 0.5985748218527316
0.5985748218527316 x 100 = 59.86%