-1.76% is the change from 851 to 836
Calculation steps:
[( 836 - 851 ) ÷ 851] x 100 = -1.76%
Formula
Percentage change = [(836 - 851) / 851] x 100
Subtract the new number by the original number
836 - 851 = -15
-15 ÷ 851 = -0.01762632197414806
-0.01762632197414806 x 100 = -1.76%