161.44% is the change from 306 to 800
Calculation steps:
[( 800 - 306 ) ÷ 306] x 100 = 161.44%
Formula
Percentage change = [(800 - 306) / 306] x 100
Subtract the new number by the original number
800 - 306 = 494
494 ÷ 306 = 1.6143790849673203
1.6143790849673203 x 100 = 161.44%