163.73% is the change from 306 to 807
Calculation steps:
[( 807 - 306 ) ÷ 306] x 100 = 163.73%
Formula
Percentage change = [(807 - 306) / 306] x 100
Subtract the new number by the original number
807 - 306 = 501
501 ÷ 306 = 1.6372549019607843
1.6372549019607843 x 100 = 163.73%