-0.5% is the change from 806 to 802
Calculation steps:
[( 802 - 806 ) ÷ 806] x 100 = -0.5%
Formula
Percentage change = [(802 - 806) / 806] x 100
Subtract the new number by the original number
802 - 806 = -4
-4 ÷ 806 = -0.004962779156327543
-0.004962779156327543 x 100 = -0.5%