-38.38% is the change from 800 to 493
Calculation steps:
[( 493 - 800 ) ÷ 800] x 100 = -38.38%
Formula
Percentage change = [(493 - 800) / 800] x 100
Subtract the new number by the original number
493 - 800 = -307
-307 ÷ 800 = -0.38375
-0.38375 x 100 = -38.38%