3183.33% is the change from 30 to 985
Calculation steps:
[( 985 - 30 ) ÷ 30] x 100 = 3183.33%
Formula
Percentage change = [(985 - 30) / 30] x 100
Subtract the new number by the original number
985 - 30 = 955
955 ÷ 30 = 31.833333333333332
31.833333333333332 x 100 = 3183.33%