4500% is the change from 3 to 138
Calculation steps:
[( 138 - 3 ) ÷ 3] x 100 = 4500%
Formula
Percentage change = [(138 - 3) / 3] x 100
Subtract the new number by the original number
138 - 3 = 135
135 ÷ 3 = 45
45 x 100 = 4500%
Example