-48.95% is the change from 143 to 73
Calculation steps:
[( 73 - 143 ) ÷ 143] x 100 = -48.95%
Formula
Percentage change = [(73 - 143) / 143] x 100
Subtract the new number by the original number
73 - 143 = -70
-70 ÷ 143 = -0.48951048951048953
-0.48951048951048953 x 100 = -48.95%