111.6% is the change from 388 to 821
Calculation steps:
[( 821 - 388 ) ÷ 388] x 100 = 111.6%
Formula
Percentage change = [(821 - 388) / 388] x 100
Subtract the new number by the original number
821 - 388 = 433
433 ÷ 388 = 1.115979381443299
1.115979381443299 x 100 = 111.6%