38.92% is the change from 555 to 771
Calculation steps:
[( 771 - 555 ) ÷ 555] x 100 = 38.92%
Formula
Percentage change = [(771 - 555) / 555] x 100
Subtract the new number by the original number
771 - 555 = 216
216 ÷ 555 = 0.3891891891891892
0.3891891891891892 x 100 = 38.92%