125% is the change from 336 to 756
Calculation steps:
[( 756 - 336 ) ÷ 336] x 100 = 125%
Formula
Percentage change = [(756 - 336) / 336] x 100
Subtract the new number by the original number
756 - 336 = 420
420 ÷ 336 = 1.25
1.25 x 100 = 125%
Example