-34.15% is the change from 814 to 536
Calculation steps:
[( 536 - 814 ) ÷ 814] x 100 = -34.15%
Formula
Percentage change = [(536 - 814) / 814] x 100
Subtract the new number by the original number
536 - 814 = -278
-278 ÷ 814 = -0.3415233415233415
-0.3415233415233415 x 100 = -34.15%