163.02% is the change from 311 to 818
Calculation steps:
[( 818 - 311 ) ÷ 311] x 100 = 163.02%
Formula
Percentage change = [(818 - 311) / 311] x 100
Subtract the new number by the original number
818 - 311 = 507
507 ÷ 311 = 1.630225080385852
1.630225080385852 x 100 = 163.02%