-99.39% is the change from 977 to 6
Calculation steps:
[( 6 - 977 ) ÷ 977] x 100 = -99.39%
Formula
Percentage change = [(6 - 977) / 977] x 100
Subtract the new number by the original number
6 - 977 = -971
-971 ÷ 977 = -0.9938587512794268
-0.9938587512794268 x 100 = -99.39%