302.5% is the change from 200 to 805
Calculation steps:
[( 805 - 200 ) ÷ 200] x 100 = 302.5%
Formula
Percentage change = [(805 - 200) / 200] x 100
Subtract the new number by the original number
805 - 200 = 605
605 ÷ 200 = 3.025
3.025 x 100 = 302.5%
Example