-90.74% is the change from 486 to 45
Calculation steps:
[( 45 - 486 ) ÷ 486] x 100 = -90.74%
Formula
Percentage change = [(45 - 486) / 486] x 100
Subtract the new number by the original number
45 - 486 = -441
-441 ÷ 486 = -0.9074074074074074
-0.9074074074074074 x 100 = -90.74%