40.87% is the change from 663 to 934
Calculation steps:
[( 934 - 663 ) ÷ 663] x 100 = 40.87%
Formula
Percentage change = [(934 - 663) / 663] x 100
Subtract the new number by the original number
934 - 663 = 271
271 ÷ 663 = 0.40874811463046756
0.40874811463046756 x 100 = 40.87%