64.5% is the change from 493 to 811
Calculation steps:
[( 811 - 493 ) ÷ 493] x 100 = 64.5%
Formula
Percentage change = [(811 - 493) / 493] x 100
Subtract the new number by the original number
811 - 493 = 318
318 ÷ 493 = 0.6450304259634888
0.6450304259634888 x 100 = 64.5%