-17.19% is the change from 192 to 159
Calculation steps:
[( 159 - 192 ) ÷ 192] x 100 = -17.19%
Formula
Percentage change = [(159 - 192) / 192] x 100
Subtract the new number by the original number
159 - 192 = -33
-33 ÷ 192 = -0.171875
-0.171875 x 100 = -17.19%