-63.68% is the change from 680 to 247
Calculation steps:
[( 247 - 680 ) ÷ 680] x 100 = -63.68%
Formula
Percentage change = [(247 - 680) / 680] x 100
Subtract the new number by the original number
247 - 680 = -433
-433 ÷ 680 = -0.6367647058823529
-0.6367647058823529 x 100 = -63.68%