-19.58% is the change from 337 to 271
Calculation steps:
[( 271 - 337 ) ÷ 337] x 100 = -19.58%
Formula
Percentage change = [(271 - 337) / 337] x 100
Subtract the new number by the original number
271 - 337 = -66
-66 ÷ 337 = -0.19584569732937684
-0.19584569732937684 x 100 = -19.58%