297.06% is the change from 204 to 810
Calculation steps:
[( 810 - 204 ) ÷ 204] x 100 = 297.06%
Formula
Percentage change = [(810 - 204) / 204] x 100
Subtract the new number by the original number
810 - 204 = 606
606 ÷ 204 = 2.9705882352941178
2.9705882352941178 x 100 = 297.06%