-46.81% is the change from 957 to 509
Calculation steps:
[( 509 - 957 ) ÷ 957] x 100 = -46.81%
Formula
Percentage change = [(509 - 957) / 957] x 100
Subtract the new number by the original number
509 - 957 = -448
-448 ÷ 957 = -0.46812957157784746
-0.46812957157784746 x 100 = -46.81%