46.34% is the change from 287 to 420
Calculation steps:
[( 420 - 287 ) ÷ 287] x 100 = 46.34%
Formula
Percentage change = [(420 - 287) / 287] x 100
Subtract the new number by the original number
420 - 287 = 133
133 ÷ 287 = 0.4634146341463415
0.4634146341463415 x 100 = 46.34%