-77.51% is the change from 667 to 150
Calculation steps:
[( 150 - 667 ) ÷ 667] x 100 = -77.51%
Formula
Percentage change = [(150 - 667) / 667] x 100
Subtract the new number by the original number
150 - 667 = -517
-517 ÷ 667 = -0.775112443778111
-0.775112443778111 x 100 = -77.51%