-79.95% is the change from 768 to 154
Calculation steps:
[( 154 - 768 ) ÷ 768] x 100 = -79.95%
Formula
Percentage change = [(154 - 768) / 768] x 100
Subtract the new number by the original number
154 - 768 = -614
-614 ÷ 768 = -0.7994791666666666
-0.7994791666666666 x 100 = -79.95%