-50.76% is the change from 989 to 487
Calculation steps:
[( 487 - 989 ) ÷ 989] x 100 = -50.76%
Formula
Percentage change = [(487 - 989) / 989] x 100
Subtract the new number by the original number
487 - 989 = -502
-502 ÷ 989 = -0.5075834175935288
-0.5075834175935288 x 100 = -50.76%