82.57% is the change from 304 to 555
Calculation steps:
[( 555 - 304 ) ÷ 304] x 100 = 82.57%
Formula
Percentage change = [(555 - 304) / 304] x 100
Subtract the new number by the original number
555 - 304 = 251
251 ÷ 304 = 0.8256578947368421
0.8256578947368421 x 100 = 82.57%