47.66% is the change from 512 to 756
Calculation steps:
[( 756 - 512 ) ÷ 512] x 100 = 47.66%
Formula
Percentage change = [(756 - 512) / 512] x 100
Subtract the new number by the original number
756 - 512 = 244
244 ÷ 512 = 0.4765625
0.4765625 x 100 = 47.66%