-6.59% is the change from 911 to 851
Calculation steps:
[( 851 - 911 ) ÷ 911] x 100 = -6.59%
Formula
Percentage change = [(851 - 911) / 911] x 100
Subtract the new number by the original number
851 - 911 = -60
-60 ÷ 911 = -0.06586169045005488
-0.06586169045005488 x 100 = -6.59%