If Yola currently weighs 220 pounds, then Wanda, who weighs 30 pounds more than Yola, weighs 220+30 = <<220+30=250>>250 pounds.
Wanda also weighs 80 pounds more than Yola did 2 years ago, meaning Yola weighed 250-80=<<250-80=170>>170 pounds 2 years ago.
#### 170