-35.88% is the change from 800 to 513
Calculation steps:
[( 513 - 800 ) ÷ 800] x 100 = -35.88%
Formula
Percentage change = [(513 - 800) / 800] x 100
Subtract the new number by the original number
513 - 800 = -287
-287 ÷ 800 = -0.35875
-0.35875 x 100 = -35.88%