30.4% is the change from 750 to 978
Calculation steps:
[( 978 - 750 ) ÷ 750] x 100 = 30.4%
Formula
Percentage change = [(978 - 750) / 750] x 100
Subtract the new number by the original number
978 - 750 = 228
228 ÷ 750 = 0.304
0.304 x 100 = 30.4%
Example