98.59% is the change from 497 to 987
Calculation steps:
[( 987 - 497 ) ÷ 497] x 100 = 98.59%
Formula
Percentage change = [(987 - 497) / 497] x 100
Subtract the new number by the original number
987 - 497 = 490
490 ÷ 497 = 0.9859154929577465
0.9859154929577465 x 100 = 98.59%