-45.59% is the change from 397 to 216
Calculation steps:
[( 216 - 397 ) ÷ 397] x 100 = -45.59%
Formula
Percentage change = [(216 - 397) / 397] x 100
Subtract the new number by the original number
216 - 397 = -181
-181 ÷ 397 = -0.45591939546599497
-0.45591939546599497 x 100 = -45.59%