-30.77% is the change from 143 to 99
Calculation steps:
[( 99 - 143 ) ÷ 143] x 100 = -30.77%
Formula
Percentage change = [(99 - 143) / 143] x 100
Subtract the new number by the original number
99 - 143 = -44
-44 ÷ 143 = -0.3076923076923077
-0.3076923076923077 x 100 = -30.77%