-29.69% is the change from 768 to 540
Calculation steps:
[( 540 - 768 ) ÷ 768] x 100 = -29.69%
Formula
Percentage change = [(540 - 768) / 768] x 100
Subtract the new number by the original number
540 - 768 = -228
-228 ÷ 768 = -0.296875
-0.296875 x 100 = -29.69%