24.06% is the change from 345 to 428
Calculation steps:
[( 428 - 345 ) ÷ 345] x 100 = 24.06%
Formula
Percentage change = [(428 - 345) / 345] x 100
Subtract the new number by the original number
428 - 345 = 83
83 ÷ 345 = 0.24057971014492754
0.24057971014492754 x 100 = 24.06%