-90.08% is the change from 494 to 49
Calculation steps:
[( 49 - 494 ) ÷ 494] x 100 = -90.08%
Formula
Percentage change = [(49 - 494) / 494] x 100
Subtract the new number by the original number
49 - 494 = -445
-445 ÷ 494 = -0.9008097165991903
-0.9008097165991903 x 100 = -90.08%