-90.2% is the change from 459 to 45
Calculation steps:
[( 45 - 459 ) ÷ 459] x 100 = -90.2%
Formula
Percentage change = [(45 - 459) / 459] x 100
Subtract the new number by the original number
45 - 459 = -414
-414 ÷ 459 = -0.9019607843137255
-0.9019607843137255 x 100 = -90.2%