-3.6% is the change from 778 to 750
Calculation steps:
[( 750 - 778 ) ÷ 778] x 100 = -3.6%
Formula
Percentage change = [(750 - 778) / 778] x 100
Subtract the new number by the original number
750 - 778 = -28
-28 ÷ 778 = -0.03598971722365039
-0.03598971722365039 x 100 = -3.6%