50.45% is the change from 337 to 507
Calculation steps:
[( 507 - 337 ) ÷ 337] x 100 = 50.45%
Formula
Percentage change = [(507 - 337) / 337] x 100
Subtract the new number by the original number
507 - 337 = 170
170 ÷ 337 = 0.5044510385756676
0.5044510385756676 x 100 = 50.45%