54.23% is the change from 284 to 438
Calculation steps:
[( 438 - 284 ) ÷ 284] x 100 = 54.23%
Formula
Percentage change = [(438 - 284) / 284] x 100
Subtract the new number by the original number
438 - 284 = 154
154 ÷ 284 = 0.5422535211267606
0.5422535211267606 x 100 = 54.23%