-28.89% is the change from 938 to 667
Calculation steps:
[( 667 - 938 ) ÷ 938] x 100 = -28.89%
Formula
Percentage change = [(667 - 938) / 938] x 100
Subtract the new number by the original number
667 - 938 = -271
-271 ÷ 938 = -0.2889125799573561
-0.2889125799573561 x 100 = -28.89%