-0.68% is the change from 876 to 870
Calculation steps:
[( 870 - 876 ) ÷ 876] x 100 = -0.68%
Formula
Percentage change = [(870 - 876) / 876] x 100
Subtract the new number by the original number
870 - 876 = -6
-6 ÷ 876 = -0.00684931506849315
-0.00684931506849315 x 100 = -0.68%