-25% is the change from 1000 to 750
Calculation steps:
[( 750 - 1000 ) ÷ 1000] x 100 = -25%
Formula
Percentage change = [(750 - 1000) / 1000] x 100
Subtract the new number by the original number
750 - 1000 = -250
-250 ÷ 1000 = -0.25
-0.25 x 100 = -25%