51.8% is the change from 334 to 507
Calculation steps:
[( 507 - 334 ) ÷ 334] x 100 = 51.8%
Formula
Percentage change = [(507 - 334) / 334] x 100
Subtract the new number by the original number
507 - 334 = 173
173 ÷ 334 = 0.5179640718562875
0.5179640718562875 x 100 = 51.8%