-71.22% is the change from 337 to 97
Calculation steps:
[( 97 - 337 ) ÷ 337] x 100 = -71.22%
Formula
Percentage change = [(97 - 337) / 337] x 100
Subtract the new number by the original number
97 - 337 = -240
-240 ÷ 337 = -0.712166172106825
-0.712166172106825 x 100 = -71.22%