-21.6% is the change from 801 to 628
Calculation steps:
[( 628 - 801 ) ÷ 801] x 100 = -21.6%
Formula
Percentage change = [(628 - 801) / 801] x 100
Subtract the new number by the original number
628 - 801 = -173
-173 ÷ 801 = -0.21598002496878901
-0.21598002496878901 x 100 = -21.6%