-71.53% is the change from 871 to 248
Calculation steps:
[( 248 - 871 ) ÷ 871] x 100 = -71.53%
Formula
Percentage change = [(248 - 871) / 871] x 100
Subtract the new number by the original number
248 - 871 = -623
-623 ÷ 871 = -0.7152698048220436
-0.7152698048220436 x 100 = -71.53%