-94.76% is the change from 649 to 34
Calculation steps:
[( 34 - 649 ) ÷ 649] x 100 = -94.76%
Formula
Percentage change = [(34 - 649) / 649] x 100
Subtract the new number by the original number
34 - 649 = -615
-615 ÷ 649 = -0.9476117103235747
-0.9476117103235747 x 100 = -94.76%