-5.02% is the change from 578 to 549
Calculation steps:
[( 549 - 578 ) ÷ 578] x 100 = -5.02%
Formula
Percentage change = [(549 - 578) / 578] x 100
Subtract the new number by the original number
549 - 578 = -29
-29 ÷ 578 = -0.050173010380622836
-0.050173010380622836 x 100 = -5.02%