790% is the change from 30 to 267
Calculation steps:
[( 267 - 30 ) ÷ 30] x 100 = 790%
Formula
Percentage change = [(267 - 30) / 30] x 100
Subtract the new number by the original number
267 - 30 = 237
237 ÷ 30 = 7.9
7.9 x 100 = 790%
Example