356.79% is the change from 81 to 370
Calculation steps:
[( 370 - 81 ) ÷ 81] x 100 = 356.79%
Formula
Percentage change = [(370 - 81) / 81] x 100
Subtract the new number by the original number
370 - 81 = 289
289 ÷ 81 = 3.567901234567901
3.567901234567901 x 100 = 356.79%