115.64% is the change from 390 to 841
Calculation steps:
[( 841 - 390 ) ÷ 390] x 100 = 115.64%
Formula
Percentage change = [(841 - 390) / 390] x 100
Subtract the new number by the original number
841 - 390 = 451
451 ÷ 390 = 1.1564102564102565
1.1564102564102565 x 100 = 115.64%