8.56% is the change from 900 to 977
Calculation steps:
[( 977 - 900 ) ÷ 900] x 100 = 8.56%
Formula
Percentage change = [(977 - 900) / 900] x 100
Subtract the new number by the original number
977 - 900 = 77
77 ÷ 900 = 0.08555555555555555
0.08555555555555555 x 100 = 8.56%