287.5% is the change from 208 to 806
Calculation steps:
[( 806 - 208 ) ÷ 208] x 100 = 287.5%
Formula
Percentage change = [(806 - 208) / 208] x 100
Subtract the new number by the original number
806 - 208 = 598
598 ÷ 208 = 2.875
2.875 x 100 = 287.5%
Example