99.77% is the change from 440 to 879
Calculation steps:
[( 879 - 440 ) ÷ 440] x 100 = 99.77%
Formula
Percentage change = [(879 - 440) / 440] x 100
Subtract the new number by the original number
879 - 440 = 439
439 ÷ 440 = 0.9977272727272727
0.9977272727272727 x 100 = 99.77%