-67.94% is the change from 680 to 218
Calculation steps:
[( 218 - 680 ) ÷ 680] x 100 = -67.94%
Formula
Percentage change = [(218 - 680) / 680] x 100
Subtract the new number by the original number
218 - 680 = -462
-462 ÷ 680 = -0.6794117647058824
-0.6794117647058824 x 100 = -67.94%