22.42% is the change from 678 to 830
Calculation steps:
[( 830 - 678 ) ÷ 678] x 100 = 22.42%
Formula
Percentage change = [(830 - 678) / 678] x 100
Subtract the new number by the original number
830 - 678 = 152
152 ÷ 678 = 0.22418879056047197
0.22418879056047197 x 100 = 22.42%