-5.51% is the change from 907 to 857
Calculation steps:
[( 857 - 907 ) ÷ 907] x 100 = -5.51%
Formula
Percentage change = [(857 - 907) / 907] x 100
Subtract the new number by the original number
857 - 907 = -50
-50 ÷ 907 = -0.05512679162072767
-0.05512679162072767 x 100 = -5.51%