299.21% is the change from 127 to 507
Calculation steps:
[( 507 - 127 ) ÷ 127] x 100 = 299.21%
Formula
Percentage change = [(507 - 127) / 127] x 100
Subtract the new number by the original number
507 - 127 = 380
380 ÷ 127 = 2.9921259842519685
2.9921259842519685 x 100 = 299.21%