-16.05% is the change from 324 to 272
Calculation steps:
[( 272 - 324 ) ÷ 324] x 100 = -16.05%
Formula
Percentage change = [(272 - 324) / 324] x 100
Subtract the new number by the original number
272 - 324 = -52
-52 ÷ 324 = -0.16049382716049382
-0.16049382716049382 x 100 = -16.05%