59.1% is the change from 423 to 673
Calculation steps:
[( 673 - 423 ) ÷ 423] x 100 = 59.1%
Formula
Percentage change = [(673 - 423) / 423] x 100
Subtract the new number by the original number
673 - 423 = 250
250 ÷ 423 = 0.5910165484633569
0.5910165484633569 x 100 = 59.1%