-89.56% is the change from 977 to 102
Calculation steps:
[( 102 - 977 ) ÷ 977] x 100 = -89.56%
Formula
Percentage change = [(102 - 977) / 977] x 100
Subtract the new number by the original number
102 - 977 = -875
-875 ÷ 977 = -0.8955987717502559
-0.8955987717502559 x 100 = -89.56%