225% is the change from 140 to 455
Calculation steps:
[( 455 - 140 ) ÷ 140] x 100 = 225%
Formula
Percentage change = [(455 - 140) / 140] x 100
Subtract the new number by the original number
455 - 140 = 315
315 ÷ 140 = 2.25
2.25 x 100 = 225%
Example