166.45% is the change from 307 to 818
Calculation steps:
[( 818 - 307 ) ÷ 307] x 100 = 166.45%
Formula
Percentage change = [(818 - 307) / 307] x 100
Subtract the new number by the original number
818 - 307 = 511
511 ÷ 307 = 1.6644951140065147
1.6644951140065147 x 100 = 166.45%