147.06% is the change from 306 to 756
Calculation steps:
[( 756 - 306 ) ÷ 306] x 100 = 147.06%
Formula
Percentage change = [(756 - 306) / 306] x 100
Subtract the new number by the original number
756 - 306 = 450
450 ÷ 306 = 1.4705882352941178
1.4705882352941178 x 100 = 147.06%