-77.47% is the change from 768 to 173
Calculation steps:
[( 173 - 768 ) ÷ 768] x 100 = -77.47%
Formula
Percentage change = [(173 - 768) / 768] x 100
Subtract the new number by the original number
173 - 768 = -595
-595 ÷ 768 = -0.7747395833333334
-0.7747395833333334 x 100 = -77.47%