2123.33% is the change from 30 to 667
Calculation steps:
[( 667 - 30 ) ÷ 30] x 100 = 2123.33%
Formula
Percentage change = [(667 - 30) / 30] x 100
Subtract the new number by the original number
667 - 30 = 637
637 ÷ 30 = 21.233333333333334
21.233333333333334 x 100 = 2123.33%