162.18% is the change from 312 to 818
Calculation steps:
[( 818 - 312 ) ÷ 312] x 100 = 162.18%
Formula
Percentage change = [(818 - 312) / 312] x 100
Subtract the new number by the original number
818 - 312 = 506
506 ÷ 312 = 1.6217948717948718
1.6217948717948718 x 100 = 162.18%