-28.79% is the change from 771 to 549
Calculation steps:
[( 549 - 771 ) ÷ 771] x 100 = -28.79%
Formula
Percentage change = [(549 - 771) / 771] x 100
Subtract the new number by the original number
549 - 771 = -222
-222 ÷ 771 = -0.28793774319066145
-0.28793774319066145 x 100 = -28.79%