48.01% is the change from 352 to 521
Calculation steps:
[( 521 - 352 ) ÷ 352] x 100 = 48.01%
Formula
Percentage change = [(521 - 352) / 352] x 100
Subtract the new number by the original number
521 - 352 = 169
169 ÷ 352 = 0.48011363636363635
0.48011363636363635 x 100 = 48.01%