-37.77% is the change from 871 to 542
Calculation steps:
[( 542 - 871 ) ÷ 871] x 100 = -37.77%
Formula
Percentage change = [(542 - 871) / 871] x 100
Subtract the new number by the original number
542 - 871 = -329
-329 ÷ 871 = -0.3777267508610792
-0.3777267508610792 x 100 = -37.77%