30% is the change from 540 to 702
Calculation steps:
[( 702 - 540 ) ÷ 540] x 100 = 30%
Formula
Percentage change = [(702 - 540) / 540] x 100
Subtract the new number by the original number
702 - 540 = 162
162 ÷ 540 = 0.3
0.3 x 100 = 30%
Example