38.65% is the change from 207 to 287
Calculation steps:
[( 287 - 207 ) ÷ 207] x 100 = 38.65%
Formula
Percentage change = [(287 - 207) / 207] x 100
Subtract the new number by the original number
287 - 207 = 80
80 ÷ 207 = 0.3864734299516908
0.3864734299516908 x 100 = 38.65%