74.46% is the change from 509 to 888
Calculation steps:
[( 888 - 509 ) ÷ 509] x 100 = 74.46%
Formula
Percentage change = [(888 - 509) / 509] x 100
Subtract the new number by the original number
888 - 509 = 379
379 ÷ 509 = 0.7445972495088409
0.7445972495088409 x 100 = 74.46%