-64.45% is the change from 768 to 273
Calculation steps:
[( 273 - 768 ) ÷ 768] x 100 = -64.45%
Formula
Percentage change = [(273 - 768) / 768] x 100
Subtract the new number by the original number
273 - 768 = -495
-495 ÷ 768 = -0.64453125
-0.64453125 x 100 = -64.45%