2.86% is the change from 700 to 720
Calculation steps:
[( 720 - 700 ) ÷ 700] x 100 = 2.86%
Formula
Percentage change = [(720 - 700) / 700] x 100
Subtract the new number by the original number
720 - 700 = 20
20 ÷ 700 = 0.02857142857142857
0.02857142857142857 x 100 = 2.86%