-39.71% is the change from 680 to 410
Calculation steps:
[( 410 - 680 ) ÷ 680] x 100 = -39.71%
Formula
Percentage change = [(410 - 680) / 680] x 100
Subtract the new number by the original number
410 - 680 = -270
-270 ÷ 680 = -0.39705882352941174
-0.39705882352941174 x 100 = -39.71%