-36.18% is the change from 680 to 434
Calculation steps:
[( 434 - 680 ) ÷ 680] x 100 = -36.18%
Formula
Percentage change = [(434 - 680) / 680] x 100
Subtract the new number by the original number
434 - 680 = -246
-246 ÷ 680 = -0.36176470588235293
-0.36176470588235293 x 100 = -36.18%