-39.11% is the change from 271 to 165
Calculation steps:
[( 165 - 271 ) ÷ 271] x 100 = -39.11%
Formula
Percentage change = [(165 - 271) / 271] x 100
Subtract the new number by the original number
165 - 271 = -106
-106 ÷ 271 = -0.39114391143911437
-0.39114391143911437 x 100 = -39.11%