54.2% is the change from 345 to 532
Calculation steps:
[( 532 - 345 ) ÷ 345] x 100 = 54.2%
Formula
Percentage change = [(532 - 345) / 345] x 100
Subtract the new number by the original number
532 - 345 = 187
187 ÷ 345 = 0.5420289855072464
0.5420289855072464 x 100 = 54.2%