-93.23% is the change from 192 to 13
Calculation steps:
[( 13 - 192 ) ÷ 192] x 100 = -93.23%
Formula
Percentage change = [(13 - 192) / 192] x 100
Subtract the new number by the original number
13 - 192 = -179
-179 ÷ 192 = -0.9322916666666666
-0.9322916666666666 x 100 = -93.23%