3.43% is the change from 525 to 543
Calculation steps:
[( 543 - 525 ) ÷ 525] x 100 = 3.43%
Formula
Percentage change = [(543 - 525) / 525] x 100
Subtract the new number by the original number
543 - 525 = 18
18 ÷ 525 = 0.03428571428571429
0.03428571428571429 x 100 = 3.43%