-28.92% is the change from 937 to 666
Calculation steps:
[( 666 - 937 ) ÷ 937] x 100 = -28.92%
Formula
Percentage change = [(666 - 937) / 937] x 100
Subtract the new number by the original number
666 - 937 = -271
-271 ÷ 937 = -0.2892209178228389
-0.2892209178228389 x 100 = -28.92%