-3.23% is the change from 775 to 750
Calculation steps:
[( 750 - 775 ) ÷ 775] x 100 = -3.23%
Formula
Percentage change = [(750 - 775) / 775] x 100
Subtract the new number by the original number
750 - 775 = -25
-25 ÷ 775 = -0.03225806451612903
-0.03225806451612903 x 100 = -3.23%