-10.4% is the change from 481 to 431
Calculation steps:
[( 431 - 481 ) ÷ 481] x 100 = -10.4%
Formula
Percentage change = [(431 - 481) / 481] x 100
Subtract the new number by the original number
431 - 481 = -50
-50 ÷ 481 = -0.10395010395010396
-0.10395010395010396 x 100 = -10.4%