-25.94% is the change from 320 to 237
Calculation steps:
[( 237 - 320 ) ÷ 320] x 100 = -25.94%
Formula
Percentage change = [(237 - 320) / 320] x 100
Subtract the new number by the original number
237 - 320 = -83
-83 ÷ 320 = -0.259375
-0.259375 x 100 = -25.94%