-17.48% is the change from 206 to 170
Calculation steps:
[( 170 - 206 ) ÷ 206] x 100 = -17.48%
Formula
Percentage change = [(170 - 206) / 206] x 100
Subtract the new number by the original number
170 - 206 = -36
-36 ÷ 206 = -0.17475728155339806
-0.17475728155339806 x 100 = -17.48%