247.39% is the change from 287 to 997
Calculation steps:
[( 997 - 287 ) ÷ 287] x 100 = 247.39%
Formula
Percentage change = [(997 - 287) / 287] x 100
Subtract the new number by the original number
997 - 287 = 710
710 ÷ 287 = 2.4738675958188154
2.4738675958188154 x 100 = 247.39%