683.33% is the change from 30 to 235
Calculation steps:
[( 235 - 30 ) ÷ 30] x 100 = 683.33%
Formula
Percentage change = [(235 - 30) / 30] x 100
Subtract the new number by the original number
235 - 30 = 205
205 ÷ 30 = 6.833333333333333
6.833333333333333 x 100 = 683.33%