41.45% is the change from 345 to 488
Calculation steps:
[( 488 - 345 ) ÷ 345] x 100 = 41.45%
Formula
Percentage change = [(488 - 345) / 345] x 100
Subtract the new number by the original number
488 - 345 = 143
143 ÷ 345 = 0.4144927536231884
0.4144927536231884 x 100 = 41.45%