19.51% is the change from 528 to 631
Calculation steps:
[( 631 - 528 ) ÷ 528] x 100 = 19.51%
Formula
Percentage change = [(631 - 528) / 528] x 100
Subtract the new number by the original number
631 - 528 = 103
103 ÷ 528 = 0.19507575757575757
0.19507575757575757 x 100 = 19.51%