-2.97% is the change from 706 to 685
Calculation steps:
[( 685 - 706 ) ÷ 706] x 100 = -2.97%
Formula
Percentage change = [(685 - 706) / 706] x 100
Subtract the new number by the original number
685 - 706 = -21
-21 ÷ 706 = -0.029745042492917848
-0.029745042492917848 x 100 = -2.97%