63.34% is the change from 551 to 900
Calculation steps:
[( 900 - 551 ) ÷ 551] x 100 = 63.34%
Formula
Percentage change = [(900 - 551) / 551] x 100
Subtract the new number by the original number
900 - 551 = 349
349 ÷ 551 = 0.6333938294010889
0.6333938294010889 x 100 = 63.34%