-83.12% is the change from 397 to 67
Calculation steps:
[( 67 - 397 ) ÷ 397] x 100 = -83.12%
Formula
Percentage change = [(67 - 397) / 397] x 100
Subtract the new number by the original number
67 - 397 = -330
-330 ÷ 397 = -0.8312342569269522
-0.8312342569269522 x 100 = -83.12%