54.93% is the change from 284 to 440
Calculation steps:
[( 440 - 284 ) ÷ 284] x 100 = 54.93%
Formula
Percentage change = [(440 - 284) / 284] x 100
Subtract the new number by the original number
440 - 284 = 156
156 ÷ 284 = 0.5492957746478874
0.5492957746478874 x 100 = 54.93%