200% is the change from 279 to 837
Calculation steps:
[( 837 - 279 ) ÷ 279] x 100 = 200%
Formula
Percentage change = [(837 - 279) / 279] x 100
Subtract the new number by the original number
837 - 279 = 558
558 ÷ 279 = 2
2 x 100 = 200%
Example