260% is the change from 135 to 486
Calculation steps:
[( 486 - 135 ) ÷ 135] x 100 = 260%
Formula
Percentage change = [(486 - 135) / 135] x 100
Subtract the new number by the original number
486 - 135 = 351
351 ÷ 135 = 2.6
2.6 x 100 = 260%
Example