83.03% is the change from 442 to 809
Calculation steps:
[( 809 - 442 ) ÷ 442] x 100 = 83.03%
Formula
Percentage change = [(809 - 442) / 442] x 100
Subtract the new number by the original number
809 - 442 = 367
367 ÷ 442 = 0.830316742081448
0.830316742081448 x 100 = 83.03%