521.14% is the change from 123 to 764
Calculation steps:
[( 764 - 123 ) ÷ 123] x 100 = 521.14%
Formula
Percentage change = [(764 - 123) / 123] x 100
Subtract the new number by the original number
764 - 123 = 641
641 ÷ 123 = 5.211382113821138
5.211382113821138 x 100 = 521.14%