162.38% is the change from 311 to 816
Calculation steps:
[( 816 - 311 ) ÷ 311] x 100 = 162.38%
Formula
Percentage change = [(816 - 311) / 311] x 100
Subtract the new number by the original number
816 - 311 = 505
505 ÷ 311 = 1.6237942122186495
1.6237942122186495 x 100 = 162.38%