-33.97% is the change from 680 to 449
Calculation steps:
[( 449 - 680 ) ÷ 680] x 100 = -33.97%
Formula
Percentage change = [(449 - 680) / 680] x 100
Subtract the new number by the original number
449 - 680 = -231
-231 ÷ 680 = -0.3397058823529412
-0.3397058823529412 x 100 = -33.97%