-81.77% is the change from 768 to 140
Calculation steps:
[( 140 - 768 ) ÷ 768] x 100 = -81.77%
Formula
Percentage change = [(140 - 768) / 768] x 100
Subtract the new number by the original number
140 - 768 = -628
-628 ÷ 768 = -0.8177083333333334
-0.8177083333333334 x 100 = -81.77%