75.05% is the change from 509 to 891
Calculation steps:
[( 891 - 509 ) ÷ 509] x 100 = 75.05%
Formula
Percentage change = [(891 - 509) / 509] x 100
Subtract the new number by the original number
891 - 509 = 382
382 ÷ 509 = 0.75049115913556
0.75049115913556 x 100 = 75.05%