91.12% is the change from 304 to 581
Calculation steps:
[( 581 - 304 ) ÷ 304] x 100 = 91.12%
Formula
Percentage change = [(581 - 304) / 304] x 100
Subtract the new number by the original number
581 - 304 = 277
277 ÷ 304 = 0.9111842105263158
0.9111842105263158 x 100 = 91.12%