-3.06% is the change from 851 to 825
Calculation steps:
[( 825 - 851 ) ÷ 851] x 100 = -3.06%
Formula
Percentage change = [(825 - 851) / 851] x 100
Subtract the new number by the original number
825 - 851 = -26
-26 ÷ 851 = -0.03055229142185664
-0.03055229142185664 x 100 = -3.06%