-55.69% is the change from 686 to 304
Calculation steps:
[( 304 - 686 ) ÷ 686] x 100 = -55.69%
Formula
Percentage change = [(304 - 686) / 686] x 100
Subtract the new number by the original number
304 - 686 = -382
-382 ÷ 686 = -0.5568513119533528
-0.5568513119533528 x 100 = -55.69%