A cost-plus change uses $2,900 documented cost and a 10 percent fee. What total should be shown?
Correct Answer
B) $3,190.
Ten percent of $2,900 is $290. Adding it to cost gives $3,190.
Why This Is the Correct Answer
Ten percent of $2,900 is $290. Adding it to cost gives $3,190.
Why the Other Options Are Wrong
Option A: $3,900.
$3,900. is above the supported result for cost-plus change calculation; it likely adds scope or money the rule does not allow.
Option C: $2,552.
$2,552. is below the supported result for cost-plus change calculation; it likely omits part of the approved scope, cap, credit, or holdback.
Option D: $3,987.50.
$3,987.50. is above the supported result for cost-plus change calculation; it likely adds scope or money the rule does not allow.
Memory Technique
Percent before dollars; dollars before balance in Checking Backup.
Reference Hint
Study anchor (closed-book): memorize Cost-plus change calculation from CSLB 2026 Law Book; CSLB Home Improvement Contracts / B&P Code Section 7159 home improvement contract requirements; know the rule or calculation trigger without relying on exam-room lookup.
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