-90.74% is the change from 497 to 46
Calculation steps:
[( 46 - 497 ) ÷ 497] x 100 = -90.74%
Formula
Percentage change = [(46 - 497) / 497] x 100
Subtract the new number by the original number
46 - 497 = -451
-451 ÷ 497 = -0.9074446680080482
-0.9074446680080482 x 100 = -90.74%