189.68% is the change from 155 to 449
Calculation steps:
[( 449 - 155 ) ÷ 155] x 100 = 189.68%
Formula
Percentage change = [(449 - 155) / 155] x 100
Subtract the new number by the original number
449 - 155 = 294
294 ÷ 155 = 1.896774193548387
1.896774193548387 x 100 = 189.68%