-54.66% is the change from 686 to 311
Calculation steps:
[( 311 - 686 ) ÷ 686] x 100 = -54.66%
Formula
Percentage change = [(311 - 686) / 686] x 100
Subtract the new number by the original number
311 - 686 = -375
-375 ÷ 686 = -0.5466472303206997
-0.5466472303206997 x 100 = -54.66%