1209.68% is the change from 31 to 406
Calculation steps:
[( 406 - 31 ) ÷ 31] x 100 = 1209.68%
Formula
Percentage change = [(406 - 31) / 31] x 100
Subtract the new number by the original number
406 - 31 = 375
375 ÷ 31 = 12.096774193548388
12.096774193548388 x 100 = 1209.68%