81.03% is the change from 311 to 563
Calculation steps:
[( 563 - 311 ) ÷ 311] x 100 = 81.03%
Formula
Percentage change = [(563 - 311) / 311] x 100
Subtract the new number by the original number
563 - 311 = 252
252 ÷ 311 = 0.8102893890675241
0.8102893890675241 x 100 = 81.03%