-18.23% is the change from 203 to 166
Calculation steps:
[( 166 - 203 ) ÷ 203] x 100 = -18.23%
Formula
Percentage change = [(166 - 203) / 203] x 100
Subtract the new number by the original number
166 - 203 = -37
-37 ÷ 203 = -0.18226600985221675
-0.18226600985221675 x 100 = -18.23%