-29.17% is the change from 816 to 578
Calculation steps:
[( 578 - 816 ) ÷ 816] x 100 = -29.17%
Formula
Percentage change = [(578 - 816) / 816] x 100
Subtract the new number by the original number
578 - 816 = -238
-238 ÷ 816 = -0.2916666666666667
-0.2916666666666667 x 100 = -29.17%