309.68% is the change from 155 to 635
Calculation steps:
[( 635 - 155 ) ÷ 155] x 100 = 309.68%
Formula
Percentage change = [(635 - 155) / 155] x 100
Subtract the new number by the original number
635 - 155 = 480
480 ÷ 155 = 3.096774193548387
3.096774193548387 x 100 = 309.68%