-29.89% is the change from 977 to 685
Calculation steps:
[( 685 - 977 ) ÷ 977] x 100 = -29.89%
Formula
Percentage change = [(685 - 977) / 977] x 100
Subtract the new number by the original number
685 - 977 = -292
-292 ÷ 977 = -0.29887410440122825
-0.29887410440122825 x 100 = -29.89%