81.25% is the change from 304 to 551
Calculation steps:
[( 551 - 304 ) ÷ 304] x 100 = 81.25%
Formula
Percentage change = [(551 - 304) / 304] x 100
Subtract the new number by the original number
551 - 304 = 247
247 ÷ 304 = 0.8125
0.8125 x 100 = 81.25%