-90.91% is the change from 506 to 46
Calculation steps:
[( 46 - 506 ) ÷ 506] x 100 = -90.91%
Formula
Percentage change = [(46 - 506) / 506] x 100
Subtract the new number by the original number
46 - 506 = -460
-460 ÷ 506 = -0.9090909090909091
-0.9090909090909091 x 100 = -90.91%