-55.59% is the change from 680 to 302
Calculation steps:
[( 302 - 680 ) ÷ 680] x 100 = -55.59%
Formula
Percentage change = [(302 - 680) / 680] x 100
Subtract the new number by the original number
302 - 680 = -378
-378 ÷ 680 = -0.5558823529411765
-0.5558823529411765 x 100 = -55.59%