-38.97% is the change from 680 to 415
Calculation steps:
[( 415 - 680 ) ÷ 680] x 100 = -38.97%
Formula
Percentage change = [(415 - 680) / 680] x 100
Subtract the new number by the original number
415 - 680 = -265
-265 ÷ 680 = -0.3897058823529412
-0.3897058823529412 x 100 = -38.97%