-6.72% is the change from 670 to 625
Calculation steps:
[( 625 - 670 ) ÷ 670] x 100 = -6.72%
Formula
Percentage change = [(625 - 670) / 670] x 100
Subtract the new number by the original number
625 - 670 = -45
-45 ÷ 670 = -0.06716417910447761
-0.06716417910447761 x 100 = -6.72%