3.98% is the change from 528 to 549
Calculation steps:
[( 549 - 528 ) ÷ 528] x 100 = 3.98%
Formula
Percentage change = [(549 - 528) / 528] x 100
Subtract the new number by the original number
549 - 528 = 21
21 ÷ 528 = 0.03977272727272727
0.03977272727272727 x 100 = 3.98%