-18.13% is the change from 320 to 262
Calculation steps:
[( 262 - 320 ) ÷ 320] x 100 = -18.13%
Formula
Percentage change = [(262 - 320) / 320] x 100
Subtract the new number by the original number
262 - 320 = -58
-58 ÷ 320 = -0.18125
-0.18125 x 100 = -18.13%