281.16% is the change from 138 to 526
Calculation steps:
[( 526 - 138 ) ÷ 138] x 100 = 281.16%
Formula
Percentage change = [(526 - 138) / 138] x 100
Subtract the new number by the original number
526 - 138 = 388
388 ÷ 138 = 2.8115942028985508
2.8115942028985508 x 100 = 281.16%