-29.04% is the change from 816 to 579
Calculation steps:
[( 579 - 816 ) ÷ 816] x 100 = -29.04%
Formula
Percentage change = [(579 - 816) / 816] x 100
Subtract the new number by the original number
579 - 816 = -237
-237 ÷ 816 = -0.29044117647058826
-0.29044117647058826 x 100 = -29.04%