121.45% is the change from 345 to 764
Calculation steps:
[( 764 - 345 ) ÷ 345] x 100 = 121.45%
Formula
Percentage change = [(764 - 345) / 345] x 100
Subtract the new number by the original number
764 - 345 = 419
419 ÷ 345 = 1.2144927536231884
1.2144927536231884 x 100 = 121.45%