319.67% is the change from 122 to 512
Calculation steps:
[( 512 - 122 ) ÷ 122] x 100 = 319.67%
Formula
Percentage change = [(512 - 122) / 122] x 100
Subtract the new number by the original number
512 - 122 = 390
390 ÷ 122 = 3.19672131147541
3.19672131147541 x 100 = 319.67%