-64.85% is the change from 680 to 239
Calculation steps:
[( 239 - 680 ) ÷ 680] x 100 = -64.85%
Formula
Percentage change = [(239 - 680) / 680] x 100
Subtract the new number by the original number
239 - 680 = -441
-441 ÷ 680 = -0.6485294117647059
-0.6485294117647059 x 100 = -64.85%