-38.27% is the change from 878 to 542
Calculation steps:
[( 542 - 878 ) ÷ 878] x 100 = -38.27%
Formula
Percentage change = [(542 - 878) / 878] x 100
Subtract the new number by the original number
542 - 878 = -336
-336 ÷ 878 = -0.3826879271070615
-0.3826879271070615 x 100 = -38.27%