-64.36% is the change from 665 to 237
Calculation steps:
[( 237 - 665 ) ÷ 665] x 100 = -64.36%
Formula
Percentage change = [(237 - 665) / 665] x 100
Subtract the new number by the original number
237 - 665 = -428
-428 ÷ 665 = -0.643609022556391
-0.643609022556391 x 100 = -64.36%