122.31% is the change from 390 to 867
Calculation steps:
[( 867 - 390 ) ÷ 390] x 100 = 122.31%
Formula
Percentage change = [(867 - 390) / 390] x 100
Subtract the new number by the original number
867 - 390 = 477
477 ÷ 390 = 1.2230769230769232
1.2230769230769232 x 100 = 122.31%