-6.25% is the change from 192 to 180
Calculation steps:
[( 180 - 192 ) ÷ 192] x 100 = -6.25%
Formula
Percentage change = [(180 - 192) / 192] x 100
Subtract the new number by the original number
180 - 192 = -12
-12 ÷ 192 = -0.0625
-0.0625 x 100 = -6.25%