74.02% is the change from 512 to 891
Calculation steps:
[( 891 - 512 ) ÷ 512] x 100 = 74.02%
Formula
Percentage change = [(891 - 512) / 512] x 100
Subtract the new number by the original number
891 - 512 = 379
379 ÷ 512 = 0.740234375
0.740234375 x 100 = 74.02%