319.35% is the change from 155 to 650
Calculation steps:
[( 650 - 155 ) ÷ 155] x 100 = 319.35%
Formula
Percentage change = [(650 - 155) / 155] x 100
Subtract the new number by the original number
650 - 155 = 495
495 ÷ 155 = 3.193548387096774
3.193548387096774 x 100 = 319.35%