52.3% is the change from 283 to 431
Calculation steps:
[( 431 - 283 ) ÷ 283] x 100 = 52.3%
Formula
Percentage change = [(431 - 283) / 283] x 100
Subtract the new number by the original number
431 - 283 = 148
148 ÷ 283 = 0.5229681978798587
0.5229681978798587 x 100 = 52.3%