-45.09% is the change from 397 to 218
Calculation steps:
[( 218 - 397 ) ÷ 397] x 100 = -45.09%
Formula
Percentage change = [(218 - 397) / 397] x 100
Subtract the new number by the original number
218 - 397 = -179
-179 ÷ 397 = -0.4508816120906801
-0.4508816120906801 x 100 = -45.09%