60.13% is the change from 311 to 498
Calculation steps:
[( 498 - 311 ) ÷ 311] x 100 = 60.13%
Formula
Percentage change = [(498 - 311) / 311] x 100
Subtract the new number by the original number
498 - 311 = 187
187 ÷ 311 = 0.6012861736334405
0.6012861736334405 x 100 = 60.13%