122.05% is the change from 263 to 584
Calculation steps:
[( 584 - 263 ) ÷ 263] x 100 = 122.05%
Formula
Percentage change = [(584 - 263) / 263] x 100
Subtract the new number by the original number
584 - 263 = 321
321 ÷ 263 = 1.220532319391635
1.220532319391635 x 100 = 122.05%