1095.24% is the change from 21 to 251
Calculation steps:
[( 251 - 21 ) ÷ 21] x 100 = 1095.24%
Formula
Percentage change = [(251 - 21) / 21] x 100
Subtract the new number by the original number
251 - 21 = 230
230 ÷ 21 = 10.952380952380953
10.952380952380953 x 100 = 1095.24%