300% is the change from 203 to 812
Calculation steps:
[( 812 - 203 ) ÷ 203] x 100 = 300%
Formula
Percentage change = [(812 - 203) / 203] x 100
Subtract the new number by the original number
812 - 203 = 609
609 ÷ 203 = 3
3 x 100 = 300%
Example