-86.78% is the change from 673 to 89
Calculation steps:
[( 89 - 673 ) ÷ 673] x 100 = -86.78%
Formula
Percentage change = [(89 - 673) / 673] x 100
Subtract the new number by the original number
89 - 673 = -584
-584 ÷ 673 = -0.8677563150074294
-0.8677563150074294 x 100 = -86.78%