75.36% is the change from 345 to 605
Calculation steps:
[( 605 - 345 ) ÷ 345] x 100 = 75.36%
Formula
Percentage change = [(605 - 345) / 345] x 100
Subtract the new number by the original number
605 - 345 = 260
260 ÷ 345 = 0.7536231884057971
0.7536231884057971 x 100 = 75.36%