369.14% is the change from 81 to 380
Calculation steps:
[( 380 - 81 ) ÷ 81] x 100 = 369.14%
Formula
Percentage change = [(380 - 81) / 81] x 100
Subtract the new number by the original number
380 - 81 = 299
299 ÷ 81 = 3.691358024691358
3.691358024691358 x 100 = 369.14%