Incorrect calculation for change

[i001962]

solace-risk-api/api/price-history/get.py

Line 17 in b3386a8

diff = abs(curr_price - prev_price)

Should be current / pervious price
eg (using a df here so let me know this isn't clear)
df[token + "chance"].iloc[i] = str(float(df[token].iloc[i]) / float(df[token].iloc[i-1]))

@ssozuer