-10.27% is the change from 331 to 297
Calculation steps:
[( 297 - 331 ) ÷ 331] x 100 = -10.27%
Formula
Percentage change = [(297 - 331) / 331] x 100
Subtract the new number by the original number
297 - 331 = -34
-34 ÷ 331 = -0.1027190332326284
-0.1027190332326284 x 100 = -10.27%