-94.76% is the change from 821 to 43
Calculation steps:
[( 43 - 821 ) ÷ 821] x 100 = -94.76%
Formula
Percentage change = [(43 - 821) / 821] x 100
Subtract the new number by the original number
43 - 821 = -778
-778 ÷ 821 = -0.9476248477466505
-0.9476248477466505 x 100 = -94.76%