163.28% is the change from 305 to 803
Calculation steps:
[( 803 - 305 ) ÷ 305] x 100 = 163.28%
Formula
Percentage change = [(803 - 305) / 305] x 100
Subtract the new number by the original number
803 - 305 = 498
498 ÷ 305 = 1.6327868852459015
1.6327868852459015 x 100 = 163.28%