-49.75% is the change from 987 to 496
Calculation steps:
[( 496 - 987 ) ÷ 987] x 100 = -49.75%
Formula
Percentage change = [(496 - 987) / 987] x 100
Subtract the new number by the original number
496 - 987 = -491
-491 ÷ 987 = -0.49746707193515705
-0.49746707193515705 x 100 = -49.75%