1200% is the change from 35 to 455
Calculation steps:
[( 455 - 35 ) ÷ 35] x 100 = 1200%
Formula
Percentage change = [(455 - 35) / 35] x 100
Subtract the new number by the original number
455 - 35 = 420
420 ÷ 35 = 12
12 x 100 = 1200%
Example