-94.28% is the change from 647 to 37
Calculation steps:
[( 37 - 647 ) ÷ 647] x 100 = -94.28%
Formula
Percentage change = [(37 - 647) / 647] x 100
Subtract the new number by the original number
37 - 647 = -610
-610 ÷ 647 = -0.9428129829984544
-0.9428129829984544 x 100 = -94.28%