16.18% is the change from 309 to 359
Calculation steps:
[( 359 - 309 ) ÷ 309] x 100 = 16.18%
Formula
Percentage change = [(359 - 309) / 309] x 100
Subtract the new number by the original number
359 - 309 = 50
50 ÷ 309 = 0.16181229773462782
0.16181229773462782 x 100 = 16.18%