-48.58% is the change from 669 to 344
Calculation steps:
[( 344 - 669 ) ÷ 669] x 100 = -48.58%
Formula
Percentage change = [(344 - 669) / 669] x 100
Subtract the new number by the original number
344 - 669 = -325
-325 ÷ 669 = -0.4857997010463378
-0.4857997010463378 x 100 = -48.58%