-54.26% is the change from 680 to 311
Calculation steps:
[( 311 - 680 ) ÷ 680] x 100 = -54.26%
Formula
Percentage change = [(311 - 680) / 680] x 100
Subtract the new number by the original number
311 - 680 = -369
-369 ÷ 680 = -0.5426470588235294
-0.5426470588235294 x 100 = -54.26%