172.9% is the change from 155 to 423
Calculation steps:
[( 423 - 155 ) ÷ 155] x 100 = 172.9%
Formula
Percentage change = [(423 - 155) / 155] x 100
Subtract the new number by the original number
423 - 155 = 268
268 ÷ 155 = 1.729032258064516
1.729032258064516 x 100 = 172.9%