-10.24% is the change from 166 to 149
Calculation steps:
[( 149 - 166 ) ÷ 166] x 100 = -10.24%
Formula
Percentage change = [(149 - 166) / 166] x 100
Subtract the new number by the original number
149 - 166 = -17
-17 ÷ 166 = -0.10240963855421686
-0.10240963855421686 x 100 = -10.24%