6.55% is the change from 870 to 927
Calculation steps:
[( 927 - 870 ) ÷ 870] x 100 = 6.55%
Formula
Percentage change = [(927 - 870) / 870] x 100
Subtract the new number by the original number
927 - 870 = 57
57 ÷ 870 = 0.06551724137931035
0.06551724137931035 x 100 = 6.55%