379.52% is the change from 83 to 398
Calculation steps:
[( 398 - 83 ) ÷ 83] x 100 = 379.52%
Formula
Percentage change = [(398 - 83) / 83] x 100
Subtract the new number by the original number
398 - 83 = 315
315 ÷ 83 = 3.7951807228915664
3.7951807228915664 x 100 = 379.52%