48.59% is the change from 284 to 422
Calculation steps:
[( 422 - 284 ) ÷ 284] x 100 = 48.59%
Formula
Percentage change = [(422 - 284) / 284] x 100
Subtract the new number by the original number
422 - 284 = 138
138 ÷ 284 = 0.4859154929577465
0.4859154929577465 x 100 = 48.59%