163.87% is the change from 310 to 818
Calculation steps:
[( 818 - 310 ) ÷ 310] x 100 = 163.87%
Formula
Percentage change = [(818 - 310) / 310] x 100
Subtract the new number by the original number
818 - 310 = 508
508 ÷ 310 = 1.6387096774193548
1.6387096774193548 x 100 = 163.87%