-90.48% is the change from 977 to 93
Calculation steps:
[( 93 - 977 ) ÷ 977] x 100 = -90.48%
Formula
Percentage change = [(93 - 977) / 977] x 100
Subtract the new number by the original number
93 - 977 = -884
-884 ÷ 977 = -0.9048106448311156
-0.9048106448311156 x 100 = -90.48%