-49.54% is the change from 985 to 497
Calculation steps:
[( 497 - 985 ) ÷ 985] x 100 = -49.54%
Formula
Percentage change = [(497 - 985) / 985] x 100
Subtract the new number by the original number
497 - 985 = -488
-488 ÷ 985 = -0.4954314720812183
-0.4954314720812183 x 100 = -49.54%