20.51% is the change from 434 to 523
Calculation steps:
[( 523 - 434 ) ÷ 434] x 100 = 20.51%
Formula
Percentage change = [(523 - 434) / 434] x 100
Subtract the new number by the original number
523 - 434 = 89
89 ÷ 434 = 0.20506912442396313
0.20506912442396313 x 100 = 20.51%