71.08% is the change from 287 to 491
Calculation steps:
[( 491 - 287 ) ÷ 287] x 100 = 71.08%
Formula
Percentage change = [(491 - 287) / 287] x 100
Subtract the new number by the original number
491 - 287 = 204
204 ÷ 287 = 0.710801393728223
0.710801393728223 x 100 = 71.08%