320% is the change from 155 to 651
Calculation steps:
[( 651 - 155 ) ÷ 155] x 100 = 320%
Formula
Percentage change = [(651 - 155) / 155] x 100
Subtract the new number by the original number
651 - 155 = 496
496 ÷ 155 = 3.2
3.2 x 100 = 320%
Example