1391.18% is the change from 34 to 507
Calculation steps:
[( 507 - 34 ) ÷ 34] x 100 = 1391.18%
Formula
Percentage change = [(507 - 34) / 34] x 100
Subtract the new number by the original number
507 - 34 = 473
473 ÷ 34 = 13.911764705882353
13.911764705882353 x 100 = 1391.18%