-75.57% is the change from 397 to 97
Calculation steps:
[( 97 - 397 ) ÷ 397] x 100 = -75.57%
Formula
Percentage change = [(97 - 397) / 397] x 100
Subtract the new number by the original number
97 - 397 = -300
-300 ÷ 397 = -0.7556675062972292
-0.7556675062972292 x 100 = -75.57%