-9.66% is the change from 145 to 131
Calculation steps:
[( 131 - 145 ) ÷ 145] x 100 = -9.66%
Formula
Percentage change = [(131 - 145) / 145] x 100
Subtract the new number by the original number
131 - 145 = -14
-14 ÷ 145 = -0.09655172413793103
-0.09655172413793103 x 100 = -9.66%