-8.79% is the change from 933 to 851
Calculation steps:
[( 851 - 933 ) ÷ 933] x 100 = -8.79%
Formula
Percentage change = [(851 - 933) / 933] x 100
Subtract the new number by the original number
851 - 933 = -82
-82 ÷ 933 = -0.08788853161843516
-0.08788853161843516 x 100 = -8.79%