-35.83% is the change from 667 to 428
Calculation steps:
[( 428 - 667 ) ÷ 667] x 100 = -35.83%
Formula
Percentage change = [(428 - 667) / 667] x 100
Subtract the new number by the original number
428 - 667 = -239
-239 ÷ 667 = -0.3583208395802099
-0.3583208395802099 x 100 = -35.83%