3600% is the change from 27 to 999
Calculation steps:
[( 999 - 27 ) ÷ 27] x 100 = 3600%
Formula
Percentage change = [(999 - 27) / 27] x 100
Subtract the new number by the original number
999 - 27 = 972
972 ÷ 27 = 36
36 x 100 = 3600%
Example