79.42% is the change from 311 to 558
Calculation steps:
[( 558 - 311 ) ÷ 311] x 100 = 79.42%
Formula
Percentage change = [(558 - 311) / 311] x 100
Subtract the new number by the original number
558 - 311 = 247
247 ÷ 311 = 0.7942122186495176
0.7942122186495176 x 100 = 79.42%