-13.42% is the change from 745 to 645
Calculation steps:
[( 645 - 745 ) ÷ 745] x 100 = -13.42%
Formula
Percentage change = [(645 - 745) / 745] x 100
Subtract the new number by the original number
645 - 745 = -100
-100 ÷ 745 = -0.1342281879194631
-0.1342281879194631 x 100 = -13.42%