-12.21% is the change from 680 to 597
Calculation steps:
[( 597 - 680 ) ÷ 680] x 100 = -12.21%
Formula
Percentage change = [(597 - 680) / 680] x 100
Subtract the new number by the original number
597 - 680 = -83
-83 ÷ 680 = -0.12205882352941176
-0.12205882352941176 x 100 = -12.21%