6.48% is the change from 864 to 920
Calculation steps:
[( 920 - 864 ) ÷ 864] x 100 = 6.48%
Formula
Percentage change = [(920 - 864) / 864] x 100
Subtract the new number by the original number
920 - 864 = 56
56 ÷ 864 = 0.06481481481481481
0.06481481481481481 x 100 = 6.48%