-52.85% is the change from 999 to 471
Calculation steps:
[( 471 - 999 ) ÷ 999] x 100 = -52.85%
Formula
Percentage change = [(471 - 999) / 999] x 100
Subtract the new number by the original number
471 - 999 = -528
-528 ÷ 999 = -0.5285285285285285
-0.5285285285285285 x 100 = -52.85%