-6.9% is the change from 812 to 756
Calculation steps:
[( 756 - 812 ) ÷ 812] x 100 = -6.9%
Formula
Percentage change = [(756 - 812) / 812] x 100
Subtract the new number by the original number
756 - 812 = -56
-56 ÷ 812 = -0.06896551724137931
-0.06896551724137931 x 100 = -6.9%