21.18% is the change from 406 to 492
Calculation steps:
[( 492 - 406 ) ÷ 406] x 100 = 21.18%
Formula
Percentage change = [(492 - 406) / 406] x 100
Subtract the new number by the original number
492 - 406 = 86
86 ÷ 406 = 0.21182266009852216
0.21182266009852216 x 100 = 21.18%