821.74% is the change from 23 to 212
Calculation steps:
[( 212 - 23 ) ÷ 23] x 100 = 821.74%
Formula
Percentage change = [(212 - 23) / 23] x 100
Subtract the new number by the original number
212 - 23 = 189
189 ÷ 23 = 8.217391304347826
8.217391304347826 x 100 = 821.74%