32.46% is the change from 345 to 457
Calculation steps:
[( 457 - 345 ) ÷ 345] x 100 = 32.46%
Formula
Percentage change = [(457 - 345) / 345] x 100
Subtract the new number by the original number
457 - 345 = 112
112 ÷ 345 = 0.32463768115942027
0.32463768115942027 x 100 = 32.46%