-50.86% is the change from 989 to 486
Calculation steps:
[( 486 - 989 ) ÷ 989] x 100 = -50.86%
Formula
Percentage change = [(486 - 989) / 989] x 100
Subtract the new number by the original number
486 - 989 = -503
-503 ÷ 989 = -0.5085945399393327
-0.5085945399393327 x 100 = -50.86%