743.33% is the change from 30 to 253
Calculation steps:
[( 253 - 30 ) ÷ 30] x 100 = 743.33%
Formula
Percentage change = [(253 - 30) / 30] x 100
Subtract the new number by the original number
253 - 30 = 223
223 ÷ 30 = 7.433333333333334
7.433333333333334 x 100 = 743.33%