-37.43% is the change from 879 to 550
Calculation steps:
[( 550 - 879 ) ÷ 879] x 100 = -37.43%
Formula
Percentage change = [(550 - 879) / 879] x 100
Subtract the new number by the original number
550 - 879 = -329
-329 ÷ 879 = -0.3742889647326507
-0.3742889647326507 x 100 = -37.43%