-47.98% is the change from 667 to 347
Calculation steps:
[( 347 - 667 ) ÷ 667] x 100 = -47.98%
Formula
Percentage change = [(347 - 667) / 667] x 100
Subtract the new number by the original number
347 - 667 = -320
-320 ÷ 667 = -0.47976011994003
-0.47976011994003 x 100 = -47.98%