307.83% is the change from 166 to 677
Calculation steps:
[( 677 - 166 ) ÷ 166] x 100 = 307.83%
Formula
Percentage change = [(677 - 166) / 166] x 100
Subtract the new number by the original number
677 - 166 = 511
511 ÷ 166 = 3.0783132530120483
3.0783132530120483 x 100 = 307.83%