300.99% is the change from 202 to 810
Calculation steps:
[( 810 - 202 ) ÷ 202] x 100 = 300.99%
Formula
Percentage change = [(810 - 202) / 202] x 100
Subtract the new number by the original number
810 - 202 = 608
608 ÷ 202 = 3.00990099009901
3.00990099009901 x 100 = 300.99%