-15.1% is the change from 192 to 163
Calculation steps:
[( 163 - 192 ) ÷ 192] x 100 = -15.1%
Formula
Percentage change = [(163 - 192) / 192] x 100
Subtract the new number by the original number
163 - 192 = -29
-29 ÷ 192 = -0.15104166666666666
-0.15104166666666666 x 100 = -15.1%