-62.41% is the change from 681 to 256
Calculation steps:
[( 256 - 681 ) ÷ 681] x 100 = -62.41%
Formula
Percentage change = [(256 - 681) / 681] x 100
Subtract the new number by the original number
256 - 681 = -425
-425 ÷ 681 = -0.6240822320117474
-0.6240822320117474 x 100 = -62.41%