-32.88% is the change from 800 to 537
Calculation steps:
[( 537 - 800 ) ÷ 800] x 100 = -32.88%
Formula
Percentage change = [(537 - 800) / 800] x 100
Subtract the new number by the original number
537 - 800 = -263
-263 ÷ 800 = -0.32875
-0.32875 x 100 = -32.88%