349.38% is the change from 81 to 364
Calculation steps:
[( 364 - 81 ) ÷ 81] x 100 = 349.38%
Formula
Percentage change = [(364 - 81) / 81] x 100
Subtract the new number by the original number
364 - 81 = 283
283 ÷ 81 = 3.493827160493827
3.493827160493827 x 100 = 349.38%