56.62% is the change from 551 to 863
Calculation steps:
[( 863 - 551 ) ÷ 551] x 100 = 56.62%
Formula
Percentage change = [(863 - 551) / 551] x 100
Subtract the new number by the original number
863 - 551 = 312
312 ÷ 551 = 0.5662431941923775
0.5662431941923775 x 100 = 56.62%