-51.6% is the change from 686 to 332
Calculation steps:
[( 332 - 686 ) ÷ 686] x 100 = -51.6%
Formula
Percentage change = [(332 - 686) / 686] x 100
Subtract the new number by the original number
332 - 686 = -354
-354 ÷ 686 = -0.5160349854227405
-0.5160349854227405 x 100 = -51.6%