-34.93% is the change from 667 to 434
Calculation steps:
[( 434 - 667 ) ÷ 667] x 100 = -34.93%
Formula
Percentage change = [(434 - 667) / 667] x 100
Subtract the new number by the original number
434 - 667 = -233
-233 ÷ 667 = -0.3493253373313343
-0.3493253373313343 x 100 = -34.93%