67.54% is the change from 456 to 764
Calculation steps:
[( 764 - 456 ) ÷ 456] x 100 = 67.54%
Formula
Percentage change = [(764 - 456) / 456] x 100
Subtract the new number by the original number
764 - 456 = 308
308 ÷ 456 = 0.6754385964912281
0.6754385964912281 x 100 = 67.54%