75% is the change from 428 to 749
Calculation steps:
[( 749 - 428 ) ÷ 428] x 100 = 75%
Formula
Percentage change = [(749 - 428) / 428] x 100
Subtract the new number by the original number
749 - 428 = 321
321 ÷ 428 = 0.75
0.75 x 100 = 75%
Example