-37.45% is the change from 801 to 501
Calculation steps:
[( 501 - 801 ) ÷ 801] x 100 = -37.45%
Formula
Percentage change = [(501 - 801) / 801] x 100
Subtract the new number by the original number
501 - 801 = -300
-300 ÷ 801 = -0.37453183520599254
-0.37453183520599254 x 100 = -37.45%