1.45% is the change from 830 to 842
Calculation steps:
[( 842 - 830 ) ÷ 830] x 100 = 1.45%
Formula
Percentage change = [(842 - 830) / 830] x 100
Subtract the new number by the original number
842 - 830 = 12
12 ÷ 830 = 0.014457831325301205
0.014457831325301205 x 100 = 1.45%