-66.93% is the change from 768 to 254
Calculation steps:
[( 254 - 768 ) ÷ 768] x 100 = -66.93%
Formula
Percentage change = [(254 - 768) / 768] x 100
Subtract the new number by the original number
254 - 768 = -514
-514 ÷ 768 = -0.6692708333333334
-0.6692708333333334 x 100 = -66.93%