-69.59% is the change from 319 to 97
Calculation steps:
[( 97 - 319 ) ÷ 319] x 100 = -69.59%
Formula
Percentage change = [(97 - 319) / 319] x 100
Subtract the new number by the original number
97 - 319 = -222
-222 ÷ 319 = -0.6959247648902821
-0.6959247648902821 x 100 = -69.59%