-93.36% is the change from 768 to 51
Calculation steps:
[( 51 - 768 ) ÷ 768] x 100 = -93.36%
Formula
Percentage change = [(51 - 768) / 768] x 100
Subtract the new number by the original number
51 - 768 = -717
-717 ÷ 768 = -0.93359375
-0.93359375 x 100 = -93.36%