-17.31% is the change from 208 to 172
Calculation steps:
[( 172 - 208 ) ÷ 208] x 100 = -17.31%
Formula
Percentage change = [(172 - 208) / 208] x 100
Subtract the new number by the original number
172 - 208 = -36
-36 ÷ 208 = -0.17307692307692307
-0.17307692307692307 x 100 = -17.31%