-50.66% is the change from 987 to 487
Calculation steps:
[( 487 - 987 ) ÷ 987] x 100 = -50.66%
Formula
Percentage change = [(487 - 987) / 987] x 100
Subtract the new number by the original number
487 - 987 = -500
-500 ÷ 987 = -0.5065856129685917
-0.5065856129685917 x 100 = -50.66%