-91.4% is the change from 977 to 84
Calculation steps:
[( 84 - 977 ) ÷ 977] x 100 = -91.4%
Formula
Percentage change = [(84 - 977) / 977] x 100
Subtract the new number by the original number
84 - 977 = -893
-893 ÷ 977 = -0.9140225179119754
-0.9140225179119754 x 100 = -91.4%