-13.78% is the change from 871 to 751
Calculation steps:
[( 751 - 871 ) ÷ 871] x 100 = -13.78%
Formula
Percentage change = [(751 - 871) / 871] x 100
Subtract the new number by the original number
751 - 871 = -120
-120 ÷ 871 = -0.1377726750861079
-0.1377726750861079 x 100 = -13.78%