-12.63% is the change from 190 to 166
Calculation steps:
[( 166 - 190 ) ÷ 190] x 100 = -12.63%
Formula
Percentage change = [(166 - 190) / 190] x 100
Subtract the new number by the original number
166 - 190 = -24
-24 ÷ 190 = -0.12631578947368421
-0.12631578947368421 x 100 = -12.63%