-34.44% is the change from 816 to 535
Calculation steps:
[( 535 - 816 ) ÷ 816] x 100 = -34.44%
Formula
Percentage change = [(535 - 816) / 816] x 100
Subtract the new number by the original number
535 - 816 = -281
-281 ÷ 816 = -0.3443627450980392
-0.3443627450980392 x 100 = -34.44%