-43.25% is the change from 830 to 471
Calculation steps:
[( 471 - 830 ) ÷ 830] x 100 = -43.25%
Formula
Percentage change = [(471 - 830) / 830] x 100
Subtract the new number by the original number
471 - 830 = -359
-359 ÷ 830 = -0.43253012048192774
-0.43253012048192774 x 100 = -43.25%