3223.33% is the change from 30 to 997
Calculation steps:
[( 997 - 30 ) ÷ 30] x 100 = 3223.33%
Formula
Percentage change = [(997 - 30) / 30] x 100
Subtract the new number by the original number
997 - 30 = 967
967 ÷ 30 = 32.233333333333334
32.233333333333334 x 100 = 3223.33%