79.03% is the change from 391 to 700
Calculation steps:
[( 700 - 391 ) ÷ 391] x 100 = 79.03%
Formula
Percentage change = [(700 - 391) / 391] x 100
Subtract the new number by the original number
700 - 391 = 309
309 ÷ 391 = 0.7902813299232737
0.7902813299232737 x 100 = 79.03%