-15.25% is the change from 754 to 639
Calculation steps:
[( 639 - 754 ) ÷ 754] x 100 = -15.25%
Formula
Percentage change = [(639 - 754) / 754] x 100
Subtract the new number by the original number
639 - 754 = -115
-115 ÷ 754 = -0.15251989389920426
-0.15251989389920426 x 100 = -15.25%