-89.6% is the change from 471 to 49
Calculation steps:
[( 49 - 471 ) ÷ 471] x 100 = -89.6%
Formula
Percentage change = [(49 - 471) / 471] x 100
Subtract the new number by the original number
49 - 471 = -422
-422 ÷ 471 = -0.8959660297239915
-0.8959660297239915 x 100 = -89.6%