-57.81% is the change from 768 to 324
Calculation steps:
[( 324 - 768 ) ÷ 768] x 100 = -57.81%
Formula
Percentage change = [(324 - 768) / 768] x 100
Subtract the new number by the original number
324 - 768 = -444
-444 ÷ 768 = -0.578125
-0.578125 x 100 = -57.81%