26.52% is the change from 528 to 668
Calculation steps:
[( 668 - 528 ) ÷ 528] x 100 = 26.52%
Formula
Percentage change = [(668 - 528) / 528] x 100
Subtract the new number by the original number
668 - 528 = 140
140 ÷ 528 = 0.26515151515151514
0.26515151515151514 x 100 = 26.52%