-3.32% is the change from 693 to 670
Calculation steps:
[( 670 - 693 ) ÷ 693] x 100 = -3.32%
Formula
Percentage change = [(670 - 693) / 693] x 100
Subtract the new number by the original number
670 - 693 = -23
-23 ÷ 693 = -0.03318903318903319
-0.03318903318903319 x 100 = -3.32%