-3.87% is the change from 697 to 670
Calculation steps:
[( 670 - 697 ) ÷ 697] x 100 = -3.87%
Formula
Percentage change = [(670 - 697) / 697] x 100
Subtract the new number by the original number
670 - 697 = -27
-27 ÷ 697 = -0.03873744619799139
-0.03873744619799139 x 100 = -3.87%