81.58% is the change from 304 to 552
Calculation steps:
[( 552 - 304 ) ÷ 304] x 100 = 81.58%
Formula
Percentage change = [(552 - 304) / 304] x 100
Subtract the new number by the original number
552 - 304 = 248
248 ÷ 304 = 0.8157894736842105
0.8157894736842105 x 100 = 81.58%