-60.35% is the change from 807 to 320
Calculation steps:
[( 320 - 807 ) ÷ 807] x 100 = -60.35%
Formula
Percentage change = [(320 - 807) / 807] x 100
Subtract the new number by the original number
320 - 807 = -487
-487 ÷ 807 = -0.6034696406443618
-0.6034696406443618 x 100 = -60.35%