111.76% is the change from 306 to 648
Calculation steps:
[( 648 - 306 ) ÷ 306] x 100 = 111.76%
Formula
Percentage change = [(648 - 306) / 306] x 100
Subtract the new number by the original number
648 - 306 = 342
342 ÷ 306 = 1.1176470588235294
1.1176470588235294 x 100 = 111.76%