-90.89% is the change from 977 to 89
Calculation steps:
[( 89 - 977 ) ÷ 977] x 100 = -90.89%
Formula
Percentage change = [(89 - 977) / 977] x 100
Subtract the new number by the original number
89 - 977 = -888
-888 ÷ 977 = -0.9089048106448311
-0.9089048106448311 x 100 = -90.89%