-46.46% is the change from 917 to 491
Calculation steps:
[( 491 - 917 ) ÷ 917] x 100 = -46.46%
Formula
Percentage change = [(491 - 917) / 917] x 100
Subtract the new number by the original number
491 - 917 = -426
-426 ÷ 917 = -0.46455834242093785
-0.46455834242093785 x 100 = -46.46%