286.5% is the change from 200 to 773
Calculation steps:
[( 773 - 200 ) ÷ 200] x 100 = 286.5%
Formula
Percentage change = [(773 - 200) / 200] x 100
Subtract the new number by the original number
773 - 200 = 573
573 ÷ 200 = 2.865
2.865 x 100 = 286.5%
Example