-85.47% is the change from 647 to 94
Calculation steps:
[( 94 - 647 ) ÷ 647] x 100 = -85.47%
Formula
Percentage change = [(94 - 647) / 647] x 100
Subtract the new number by the original number
94 - 647 = -553
-553 ÷ 647 = -0.8547140649149922
-0.8547140649149922 x 100 = -85.47%