-43.27% is the change from 684 to 388
Calculation steps:
[( 388 - 684 ) ÷ 684] x 100 = -43.27%
Formula
Percentage change = [(388 - 684) / 684] x 100
Subtract the new number by the original number
388 - 684 = -296
-296 ÷ 684 = -0.4327485380116959
-0.4327485380116959 x 100 = -43.27%