15400% is the change from 1 to 155
Calculation steps:
[( 155 - 1 ) ÷ 1] x 100 = 15400%
Formula
Percentage change = [(155 - 1) / 1] x 100
Subtract the new number by the original number
155 - 1 = 154
154 ÷ 1 = 154
154 x 100 = 15400%
Example