268.15% is the change from 135 to 497
Calculation steps:
[( 497 - 135 ) ÷ 135] x 100 = 268.15%
Formula
Percentage change = [(497 - 135) / 135] x 100
Subtract the new number by the original number
497 - 135 = 362
362 ÷ 135 = 2.6814814814814816
2.6814814814814816 x 100 = 268.15%