-37.11% is the change from 873 to 549
Calculation steps:
[( 549 - 873 ) ÷ 873] x 100 = -37.11%
Formula
Percentage change = [(549 - 873) / 873] x 100
Subtract the new number by the original number
549 - 873 = -324
-324 ÷ 873 = -0.3711340206185567
-0.3711340206185567 x 100 = -37.11%