7.71% is the change from 830 to 894
Calculation steps:
[( 894 - 830 ) ÷ 830] x 100 = 7.71%
Formula
Percentage change = [(894 - 830) / 830] x 100
Subtract the new number by the original number
894 - 830 = 64
64 ÷ 830 = 0.07710843373493977
0.07710843373493977 x 100 = 7.71%