46.69% is the change from 287 to 421
Calculation steps:
[( 421 - 287 ) ÷ 287] x 100 = 46.69%
Formula
Percentage change = [(421 - 287) / 287] x 100
Subtract the new number by the original number
421 - 287 = 134
134 ÷ 287 = 0.46689895470383275
0.46689895470383275 x 100 = 46.69%