30% is the change from 750 to 975
Calculation steps:
[( 975 - 750 ) ÷ 750] x 100 = 30%
Formula
Percentage change = [(975 - 750) / 750] x 100
Subtract the new number by the original number
975 - 750 = 225
225 ÷ 750 = 0.3
0.3 x 100 = 30%
Example