-9.15% is the change from 164 to 149
Calculation steps:
[( 149 - 164 ) ÷ 164] x 100 = -9.15%
Formula
Percentage change = [(149 - 164) / 164] x 100
Subtract the new number by the original number
149 - 164 = -15
-15 ÷ 164 = -0.09146341463414634
-0.09146341463414634 x 100 = -9.15%