47.93% is the change from 555 to 821
Calculation steps:
[( 821 - 555 ) ÷ 555] x 100 = 47.93%
Formula
Percentage change = [(821 - 555) / 555] x 100
Subtract the new number by the original number
821 - 555 = 266
266 ÷ 555 = 0.47927927927927927
0.47927927927927927 x 100 = 47.93%