20.91% is the change from 263 to 318
Calculation steps:
[( 318 - 263 ) ÷ 263] x 100 = 20.91%
Formula
Percentage change = [(318 - 263) / 263] x 100
Subtract the new number by the original number
318 - 263 = 55
55 ÷ 263 = 0.20912547528517111
0.20912547528517111 x 100 = 20.91%