113.28% is the change from 399 to 851
Calculation steps:
[( 851 - 399 ) ÷ 399] x 100 = 113.28%
Formula
Percentage change = [(851 - 399) / 399] x 100
Subtract the new number by the original number
851 - 399 = 452
452 ÷ 399 = 1.1328320802005012
1.1328320802005012 x 100 = 113.28%