-35.33% is the change from 617 to 399
Calculation steps:
[( 399 - 617 ) ÷ 617] x 100 = -35.33%
Formula
Percentage change = [(399 - 617) / 617] x 100
Subtract the new number by the original number
399 - 617 = -218
-218 ÷ 617 = -0.353322528363047
-0.353322528363047 x 100 = -35.33%