-90.31% is the change from 485 to 47
Calculation steps:
[( 47 - 485 ) ÷ 485] x 100 = -90.31%
Formula
Percentage change = [(47 - 485) / 485] x 100
Subtract the new number by the original number
47 - 485 = -438
-438 ÷ 485 = -0.9030927835051547
-0.9030927835051547 x 100 = -90.31%