Answer:
$835.68
Step-by-step explanation:
lower =66
higher=90
its 273 rounded but say 270
the answer is -34
£1400
A reduction of 40% means that £840 is 60% of the original price
Divide £840 by 60 to find 1% then multiply by 100 to find original price
original price = £840 × = £1400