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amount of change = (new amount - original amount)

so, yes you've got the right "formula"
but amt of change is (143-130) and not 143

sorry i was afk

so i solved for the wrong thing?

i'm supposed to subtract them or what are you trying to say

\[\frac{ 143-130 }{ 130} = \frac{ x }{ 1000 }\]

x/100

13/130 = x/100?

yes

so i would multiply across and add a 1 under 100, no?

and that would be 13k over 130

which reduces to 10 so my answer is 10 percent?

hey they left

thank you all for the help i got it now