-27.48% is the change from 917 to 665
Calculation steps:
[( 665 - 917 ) ÷ 917] x 100 = -27.48%
Formula
Percentage change = [(665 - 917) / 917] x 100
Subtract the new number by the original number
665 - 917 = -252
-252 ÷ 917 = -0.2748091603053435
-0.2748091603053435 x 100 = -27.48%