88.21% is the change from 441 to 830
Calculation steps:
[( 830 - 441 ) ÷ 441] x 100 = 88.21%
Formula
Percentage change = [(830 - 441) / 441] x 100
Subtract the new number by the original number
830 - 441 = 389
389 ÷ 441 = 0.8820861678004536
0.8820861678004536 x 100 = 88.21%