40.42% is the change from 287 to 403
Calculation steps:
[( 403 - 287 ) ÷ 287] x 100 = 40.42%
Formula
Percentage change = [(403 - 287) / 287] x 100
Subtract the new number by the original number
403 - 287 = 116
116 ÷ 287 = 0.40418118466898956
0.40418118466898956 x 100 = 40.42%