He ordered a can of tomatoes for $0.99 but they subbed with one that cost $2.20 for a difference of 2.20-.99 = $<<2.20-.99=1.21>>1.21
He ordered lettuce for $1.00 but they subbed with one that cost $1.75 for a difference of 1.75-1.00 = $<<1.75-1.00=0.75>>0.75
His celery for $1.96 but they subbed with one that cost $2.00 for a difference of 2.00-1.96 = $0.04
That's an additional charge of 1.21+.75+.04 = $<<1.21+.75+.04=2.00>>2.00 in groceries
His additional charges of $2.00 and the delivery/tip of $8.00 add 2+8 = $<<2+8=10.00>>10.00 to the order
His original order was $25 and they added $10.00 so his new order is 25+10 = $<<25+10=35.00>>35.00
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