-68.8% is the change from 798 to 249
Calculation steps:
[( 249 - 798 ) ÷ 798] x 100 = -68.8%
Formula
Percentage change = [(249 - 798) / 798] x 100
Subtract the new number by the original number
249 - 798 = -549
-549 ÷ 798 = -0.6879699248120301
-0.6879699248120301 x 100 = -68.8%