81.85% is the change from 303 to 551
Calculation steps:
[( 551 - 303 ) ÷ 303] x 100 = 81.85%
Formula
Percentage change = [(551 - 303) / 303] x 100
Subtract the new number by the original number
551 - 303 = 248
248 ÷ 303 = 0.8184818481848185
0.8184818481848185 x 100 = 81.85%