39.48% is the change from 423 to 590
Calculation steps:
[( 590 - 423 ) ÷ 423] x 100 = 39.48%
Formula
Percentage change = [(590 - 423) / 423] x 100
Subtract the new number by the original number
590 - 423 = 167
167 ÷ 423 = 0.3947990543735225
0.3947990543735225 x 100 = 39.48%