115.94% is the change from 345 to 745
Calculation steps:
[( 745 - 345 ) ÷ 345] x 100 = 115.94%
Formula
Percentage change = [(745 - 345) / 345] x 100
Subtract the new number by the original number
745 - 345 = 400
400 ÷ 345 = 1.1594202898550725
1.1594202898550725 x 100 = 115.94%