-95.18% is the change from 809 to 39
Calculation steps:
[( 39 - 809 ) ÷ 809] x 100 = -95.18%
Formula
Percentage change = [(39 - 809) / 809] x 100
Subtract the new number by the original number
39 - 809 = -770
-770 ÷ 809 = -0.9517923362175525
-0.9517923362175525 x 100 = -95.18%