-32.42% is the change from 768 to 519
Calculation steps:
[( 519 - 768 ) ÷ 768] x 100 = -32.42%
Formula
Percentage change = [(519 - 768) / 768] x 100
Subtract the new number by the original number
519 - 768 = -249
-249 ÷ 768 = -0.32421875
-0.32421875 x 100 = -32.42%