65.79% is the change from 304 to 504
Calculation steps:
[( 504 - 304 ) ÷ 304] x 100 = 65.79%
Formula
Percentage change = [(504 - 304) / 304] x 100
Subtract the new number by the original number
504 - 304 = 200
200 ÷ 304 = 0.6578947368421053
0.6578947368421053 x 100 = 65.79%