357.83% is the change from 83 to 380
Calculation steps:
[( 380 - 83 ) ÷ 83] x 100 = 357.83%
Formula
Percentage change = [(380 - 83) / 83] x 100
Subtract the new number by the original number
380 - 83 = 297
297 ÷ 83 = 3.5783132530120483
3.5783132530120483 x 100 = 357.83%