64.8% is the change from 304 to 501
Calculation steps:
[( 501 - 304 ) ÷ 304] x 100 = 64.8%
Formula
Percentage change = [(501 - 304) / 304] x 100
Subtract the new number by the original number
501 - 304 = 197
197 ÷ 304 = 0.6480263157894737
0.6480263157894737 x 100 = 64.8%