-90.53% is the change from 475 to 45
Calculation steps:
[( 45 - 475 ) ÷ 475] x 100 = -90.53%
Formula
Percentage change = [(45 - 475) / 475] x 100
Subtract the new number by the original number
45 - 475 = -430
-430 ÷ 475 = -0.9052631578947369
-0.9052631578947369 x 100 = -90.53%