83.71% is the change from 442 to 812
Calculation steps:
[( 812 - 442 ) ÷ 442] x 100 = 83.71%
Formula
Percentage change = [(812 - 442) / 442] x 100
Subtract the new number by the original number
812 - 442 = 370
370 ÷ 442 = 0.8371040723981901
0.8371040723981901 x 100 = 83.71%