-94.14% is the change from 649 to 38
Calculation steps:
[( 38 - 649 ) ÷ 649] x 100 = -94.14%
Formula
Percentage change = [(38 - 649) / 649] x 100
Subtract the new number by the original number
38 - 649 = -611
-611 ÷ 649 = -0.9414483821263482
-0.9414483821263482 x 100 = -94.14%