-35.48% is the change from 606 to 391
Calculation steps:
[( 391 - 606 ) ÷ 606] x 100 = -35.48%
Formula
Percentage change = [(391 - 606) / 606] x 100
Subtract the new number by the original number
391 - 606 = -215
-215 ÷ 606 = -0.3547854785478548
-0.3547854785478548 x 100 = -35.48%