1370% is the change from 30 to 441
Calculation steps:
[( 441 - 30 ) ÷ 30] x 100 = 1370%
Formula
Percentage change = [(441 - 30) / 30] x 100
Subtract the new number by the original number
441 - 30 = 411
411 ÷ 30 = 13.7
13.7 x 100 = 1370%
Example