110.31% is the change from 388 to 816
Calculation steps:
[( 816 - 388 ) ÷ 388] x 100 = 110.31%
Formula
Percentage change = [(816 - 388) / 388] x 100
Subtract the new number by the original number
816 - 388 = 428
428 ÷ 388 = 1.1030927835051547
1.1030927835051547 x 100 = 110.31%