-67.55% is the change from 977 to 317
Calculation steps:
[( 317 - 977 ) ÷ 977] x 100 = -67.55%
Formula
Percentage change = [(317 - 977) / 977] x 100
Subtract the new number by the original number
317 - 977 = -660
-660 ÷ 977 = -0.6755373592630501
-0.6755373592630501 x 100 = -67.55%