250% is the change from 138 to 483
Calculation steps:
[( 483 - 138 ) ÷ 138] x 100 = 250%
Formula
Percentage change = [(483 - 138) / 138] x 100
Subtract the new number by the original number
483 - 138 = 345
345 ÷ 138 = 2.5
2.5 x 100 = 250%
Example