99.53% is the change from 212 to 423
Calculation steps:
[( 423 - 212 ) ÷ 212] x 100 = 99.53%
Formula
Percentage change = [(423 - 212) / 212] x 100
Subtract the new number by the original number
423 - 212 = 211
211 ÷ 212 = 0.9952830188679245
0.9952830188679245 x 100 = 99.53%