-93.42% is the change from 471 to 31
Calculation steps:
[( 31 - 471 ) ÷ 471] x 100 = -93.42%
Formula
Percentage change = [(31 - 471) / 471] x 100
Subtract the new number by the original number
31 - 471 = -440
-440 ÷ 471 = -0.9341825902335457
-0.9341825902335457 x 100 = -93.42%