77.15% is the change from 512 to 907
Calculation steps:
[( 907 - 512 ) ÷ 512] x 100 = 77.15%
Formula
Percentage change = [(907 - 512) / 512] x 100
Subtract the new number by the original number
907 - 512 = 395
395 ÷ 512 = 0.771484375
0.771484375 x 100 = 77.15%