115.19% is the change from 395 to 850
Calculation steps:
[( 850 - 395 ) ÷ 395] x 100 = 115.19%
Formula
Percentage change = [(850 - 395) / 395] x 100
Subtract the new number by the original number
850 - 395 = 455
455 ÷ 395 = 1.1518987341772151
1.1518987341772151 x 100 = 115.19%