164.59% is the change from 305 to 807
Calculation steps:
[( 807 - 305 ) ÷ 305] x 100 = 164.59%
Formula
Percentage change = [(807 - 305) / 305] x 100
Subtract the new number by the original number
807 - 305 = 502
502 ÷ 305 = 1.6459016393442623
1.6459016393442623 x 100 = 164.59%