109.03% is the change from 155 to 324
Calculation steps:
[( 324 - 155 ) ÷ 155] x 100 = 109.03%
Formula
Percentage change = [(324 - 155) / 155] x 100
Subtract the new number by the original number
324 - 155 = 169
169 ÷ 155 = 1.0903225806451613
1.0903225806451613 x 100 = 109.03%