-66.62% is the change from 773 to 258
Calculation steps:
[( 258 - 773 ) ÷ 773] x 100 = -66.62%
Formula
Percentage change = [(258 - 773) / 773] x 100
Subtract the new number by the original number
258 - 773 = -515
-515 ÷ 773 = -0.666235446313066
-0.666235446313066 x 100 = -66.62%