-15.43% is the change from 324 to 274
Calculation steps:
[( 274 - 324 ) ÷ 324] x 100 = -15.43%
Formula
Percentage change = [(274 - 324) / 324] x 100
Subtract the new number by the original number
274 - 324 = -50
-50 ÷ 324 = -0.15432098765432098
-0.15432098765432098 x 100 = -15.43%