-32.17% is the change from 143 to 97
Calculation steps:
[( 97 - 143 ) ÷ 143] x 100 = -32.17%
Formula
Percentage change = [(97 - 143) / 143] x 100
Subtract the new number by the original number
97 - 143 = -46
-46 ÷ 143 = -0.32167832167832167
-0.32167832167832167 x 100 = -32.17%