48.41% is the change from 345 to 512
Calculation steps:
[( 512 - 345 ) ÷ 345] x 100 = 48.41%
Formula
Percentage change = [(512 - 345) / 345] x 100
Subtract the new number by the original number
512 - 345 = 167
167 ÷ 345 = 0.48405797101449277
0.48405797101449277 x 100 = 48.41%