41.2% is the change from 284 to 401
Calculation steps:
[( 401 - 284 ) ÷ 284] x 100 = 41.2%
Formula
Percentage change = [(401 - 284) / 284] x 100
Subtract the new number by the original number
401 - 284 = 117
117 ÷ 284 = 0.4119718309859155
0.4119718309859155 x 100 = 41.2%