17.45% is the change from 447 to 525
Calculation steps:
[( 525 - 447 ) ÷ 447] x 100 = 17.45%
Formula
Percentage change = [(525 - 447) / 447] x 100
Subtract the new number by the original number
525 - 447 = 78
78 ÷ 447 = 0.174496644295302
0.174496644295302 x 100 = 17.45%