128.26% is the change from 138 to 315
Calculation steps:
[( 315 - 138 ) ÷ 138] x 100 = 128.26%
Formula
Percentage change = [(315 - 138) / 138] x 100
Subtract the new number by the original number
315 - 138 = 177
177 ÷ 138 = 1.2826086956521738
1.2826086956521738 x 100 = 128.26%