-54.8% is the change from 708 to 320
Calculation steps:
[( 320 - 708 ) ÷ 708] x 100 = -54.8%
Formula
Percentage change = [(320 - 708) / 708] x 100
Subtract the new number by the original number
320 - 708 = -388
-388 ÷ 708 = -0.5480225988700564
-0.5480225988700564 x 100 = -54.8%