Curry Corp has a utility cost that is part variable and part fixed. The total activity variance was $$100$ favorable in February and flexible budget total utility cost was $$8,900.$ Planned volume was $1,000$ meals and they actually served $900$ meals. Actual total utility costs were $$9,280.$ Planned variable utility cost was $$1,000$ and the actual fixed utility cost was $$8,200.$ What is the variable utility cost spending variance? No commas or $ sign; if unfavorable, enter negative number; eg$,-1000)$