6553.33% is the change from 15 to 998
Calculation steps:
[( 998 - 15 ) ÷ 15] x 100 = 6553.33%
Formula
Percentage change = [(998 - 15) / 15] x 100
Subtract the new number by the original number
998 - 15 = 983
983 ÷ 15 = 65.53333333333333
65.53333333333333 x 100 = 6553.33%