-19.9% is the change from 206 to 165
Calculation steps:
[( 165 - 206 ) ÷ 206] x 100 = -19.9%
Formula
Percentage change = [(165 - 206) / 206] x 100
Subtract the new number by the original number
165 - 206 = -41
-41 ÷ 206 = -0.19902912621359223
-0.19902912621359223 x 100 = -19.9%