-9.49% is the change from 158 to 143
Calculation steps:
[( 143 - 158 ) ÷ 158] x 100 = -9.49%
Formula
Percentage change = [(143 - 158) / 158] x 100
Subtract the new number by the original number
143 - 158 = -15
-15 ÷ 158 = -0.0949367088607595
-0.0949367088607595 x 100 = -9.49%