-96.61% is the change from 649 to 22
Calculation steps:
[( 22 - 649 ) ÷ 649] x 100 = -96.61%
Formula
Percentage change = [(22 - 649) / 649] x 100
Subtract the new number by the original number
22 - 649 = -627
-627 ÷ 649 = -0.9661016949152542
-0.9661016949152542 x 100 = -96.61%
Example