Answer:
In June, the bakery gained $313.85
⇒ 2,205 – 1891.15 = 313.85
In July, the bakery gained $-77.33
⇒ 2,199 – 1807.82 = 391.18 ⇒ 313.85 (from June) – 391.18 = -77.33 gained OR 77.33 lost
In August, the bakery gained $55.65
⇒ 2209 – 1873.47 = 335.53 ⇒ 391.18 (from July) – 335.53 = 55.65 gained
Hope this helps! :)