66.87% is the change from 498 to 831
Calculation steps:
[( 831 - 498 ) ÷ 498] x 100 = 66.87%
Formula
Percentage change = [(831 - 498) / 498] x 100
Subtract the new number by the original number
831 - 498 = 333
333 ÷ 498 = 0.6686746987951807
0.6686746987951807 x 100 = 66.87%