-47.79% is the change from 680 to 355
Calculation steps:
[( 355 - 680 ) ÷ 680] x 100 = -47.79%
Formula
Percentage change = [(355 - 680) / 680] x 100
Subtract the new number by the original number
355 - 680 = -325
-325 ÷ 680 = -0.47794117647058826
-0.47794117647058826 x 100 = -47.79%