-67.35% is the change from 977 to 319
Calculation steps:
[( 319 - 977 ) ÷ 977] x 100 = -67.35%
Formula
Percentage change = [(319 - 977) / 977] x 100
Subtract the new number by the original number
319 - 977 = -658
-658 ÷ 977 = -0.6734902763561924
-0.6734902763561924 x 100 = -67.35%