85.85% is the change from 311 to 578
Calculation steps:
[( 578 - 311 ) ÷ 311] x 100 = 85.85%
Formula
Percentage change = [(578 - 311) / 311] x 100
Subtract the new number by the original number
578 - 311 = 267
267 ÷ 311 = 0.8585209003215434
0.8585209003215434 x 100 = 85.85%