114.56% is the change from 309 to 663
Calculation steps:
[( 663 - 309 ) ÷ 309] x 100 = 114.56%
Formula
Percentage change = [(663 - 309) / 309] x 100
Subtract the new number by the original number
663 - 309 = 354
354 ÷ 309 = 1.145631067961165
1.145631067961165 x 100 = 114.56%