-18.18% is the change from 792 to 648
Calculation steps:
[( 648 - 792 ) ÷ 792] x 100 = -18.18%
Formula
Percentage change = [(648 - 792) / 792] x 100
Subtract the new number by the original number
648 - 792 = -144
-144 ÷ 792 = -0.18181818181818182
-0.18181818181818182 x 100 = -18.18%