87% is the change from 446 to 834
Calculation steps:
[( 834 - 446 ) ÷ 446] x 100 = 87%
Formula
Percentage change = [(834 - 446) / 446] x 100
Subtract the new number by the original number
834 - 446 = 388
388 ÷ 446 = 0.8699551569506726
0.8699551569506726 x 100 = 87%