-66.02% is the change from 768 to 261
Calculation steps:
[( 261 - 768 ) ÷ 768] x 100 = -66.02%
Formula
Percentage change = [(261 - 768) / 768] x 100
Subtract the new number by the original number
261 - 768 = -507
-507 ÷ 768 = -0.66015625
-0.66015625 x 100 = -66.02%