-67.75% is the change from 989 to 319
Calculation steps:
[( 319 - 989 ) ÷ 989] x 100 = -67.75%
Formula
Percentage change = [(319 - 989) / 989] x 100
Subtract the new number by the original number
319 - 989 = -670
-670 ÷ 989 = -0.6774519716885743
-0.6774519716885743 x 100 = -67.75%