-29.34% is the change from 818 to 578
Calculation steps:
[( 578 - 818 ) ÷ 818] x 100 = -29.34%
Formula
Percentage change = [(578 - 818) / 818] x 100
Subtract the new number by the original number
578 - 818 = -240
-240 ÷ 818 = -0.293398533007335
-0.293398533007335 x 100 = -29.34%