109.02% is the change from 388 to 811
Calculation steps:
[( 811 - 388 ) ÷ 388] x 100 = 109.02%
Formula
Percentage change = [(811 - 388) / 388] x 100
Subtract the new number by the original number
811 - 388 = 423
423 ÷ 388 = 1.0902061855670102
1.0902061855670102 x 100 = 109.02%