830.43% is the change from 23 to 214
Calculation steps:
[( 214 - 23 ) ÷ 23] x 100 = 830.43%
Formula
Percentage change = [(214 - 23) / 23] x 100
Subtract the new number by the original number
214 - 23 = 191
191 ÷ 23 = 8.304347826086957
8.304347826086957 x 100 = 830.43%