-65.81% is the change from 778 to 266
Calculation steps:
[( 266 - 778 ) ÷ 778] x 100 = -65.81%
Formula
Percentage change = [(266 - 778) / 778] x 100
Subtract the new number by the original number
266 - 778 = -512
-512 ÷ 778 = -0.6580976863753213
-0.6580976863753213 x 100 = -65.81%