-19.1% is the change from 801 to 648
Calculation steps:
[( 648 - 801 ) ÷ 801] x 100 = -19.1%
Formula
Percentage change = [(648 - 801) / 801] x 100
Subtract the new number by the original number
648 - 801 = -153
-153 ÷ 801 = -0.19101123595505617
-0.19101123595505617 x 100 = -19.1%