-31.96% is the change from 851 to 579
Calculation steps:
[( 579 - 851 ) ÷ 851] x 100 = -31.96%
Formula
Percentage change = [(579 - 851) / 851] x 100
Subtract the new number by the original number
579 - 851 = -272
-272 ÷ 851 = -0.3196239717978848
-0.3196239717978848 x 100 = -31.96%