27.78% is the change from 540 to 690
Calculation steps:
[( 690 - 540 ) ÷ 540] x 100 = 27.78%
Formula
Percentage change = [(690 - 540) / 540] x 100
Subtract the new number by the original number
690 - 540 = 150
150 ÷ 540 = 0.2777777777777778
0.2777777777777778 x 100 = 27.78%