-35.58% is the change from 607 to 391
Calculation steps:
[( 391 - 607 ) ÷ 607] x 100 = -35.58%
Formula
Percentage change = [(391 - 607) / 607] x 100
Subtract the new number by the original number
391 - 607 = -216
-216 ÷ 607 = -0.35584843492586493
-0.35584843492586493 x 100 = -35.58%