264.75% is the change from 139 to 507
Calculation steps:
[( 507 - 139 ) ÷ 139] x 100 = 264.75%
Formula
Percentage change = [(507 - 139) / 139] x 100
Subtract the new number by the original number
507 - 139 = 368
368 ÷ 139 = 2.647482014388489
2.647482014388489 x 100 = 264.75%