61.2% is the change from 317 to 511
Calculation steps:
[( 511 - 317 ) ÷ 317] x 100 = 61.2%
Formula
Percentage change = [(511 - 317) / 317] x 100
Subtract the new number by the original number
511 - 317 = 194
194 ÷ 317 = 0.61198738170347
0.61198738170347 x 100 = 61.2%