-11.79% is the change from 195 to 172
Calculation steps:
[( 172 - 195 ) ÷ 195] x 100 = -11.79%
Formula
Percentage change = [(172 - 195) / 195] x 100
Subtract the new number by the original number
172 - 195 = -23
-23 ÷ 195 = -0.11794871794871795
-0.11794871794871795 x 100 = -11.79%