31000% is the change from 1 to 311
Calculation steps:
[( 311 - 1 ) ÷ 1] x 100 = 31000%
Formula
Percentage change = [(311 - 1) / 1] x 100
Subtract the new number by the original number
311 - 1 = 310
310 ÷ 1 = 310
310 x 100 = 31000%
Example