-53.52% is the change from 667 to 310
Calculation steps:
[( 310 - 667 ) ÷ 667] x 100 = -53.52%
Formula
Percentage change = [(310 - 667) / 667] x 100
Subtract the new number by the original number
310 - 667 = -357
-357 ÷ 667 = -0.5352323838080959
-0.5352323838080959 x 100 = -53.52%