-48.95% is the change from 668 to 341
Calculation steps:
[( 341 - 668 ) ÷ 668] x 100 = -48.95%
Formula
Percentage change = [(341 - 668) / 668] x 100
Subtract the new number by the original number
341 - 668 = -327
-327 ÷ 668 = -0.48952095808383234
-0.48952095808383234 x 100 = -48.95%