-48.65% is the change from 851 to 437
Calculation steps:
[( 437 - 851 ) ÷ 851] x 100 = -48.65%
Formula
Percentage change = [(437 - 851) / 851] x 100
Subtract the new number by the original number
437 - 851 = -414
-414 ÷ 851 = -0.4864864864864865
-0.4864864864864865 x 100 = -48.65%