21000% is the change from 1 to 211
Calculation steps:
[( 211 - 1 ) ÷ 1] x 100 = 21000%
Formula
Percentage change = [(211 - 1) / 1] x 100
Subtract the new number by the original number
211 - 1 = 210
210 ÷ 1 = 210
210 x 100 = 21000%
Example