-63.67% is the change from 768 to 279
Calculation steps:
[( 279 - 768 ) ÷ 768] x 100 = -63.67%
Formula
Percentage change = [(279 - 768) / 768] x 100
Subtract the new number by the original number
279 - 768 = -489
-489 ÷ 768 = -0.63671875
-0.63671875 x 100 = -63.67%