-90.51% is the change from 495 to 47
Calculation steps:
[( 47 - 495 ) ÷ 495] x 100 = -90.51%
Formula
Percentage change = [(47 - 495) / 495] x 100
Subtract the new number by the original number
47 - 495 = -448
-448 ÷ 495 = -0.9050505050505051
-0.9050505050505051 x 100 = -90.51%