166.24% is the change from 311 to 828
Calculation steps:
[( 828 - 311 ) ÷ 311] x 100 = 166.24%
Formula
Percentage change = [(828 - 311) / 311] x 100
Subtract the new number by the original number
828 - 311 = 517
517 ÷ 311 = 1.662379421221865
1.662379421221865 x 100 = 166.24%