-41.72% is the change from 851 to 496
Calculation steps:
[( 496 - 851 ) ÷ 851] x 100 = -41.72%
Formula
Percentage change = [(496 - 851) / 851] x 100
Subtract the new number by the original number
496 - 851 = -355
-355 ÷ 851 = -0.4171562867215041
-0.4171562867215041 x 100 = -41.72%