计算百分比变化(多变量) Pandas

import pandas as pd

data = {'变量1': [value1_1, value1_2, ...],
        '变量2': [value2_1, value2_2, ...],
        ...
        '变量n': [valuen_1, valuen_2, ...]}
df = pd.DataFrame(data)

percentage_change = df.pct_change() * 100

rounded_percentage_change = percentage_change.round(2)

import pandas as pd

data = {'变量1': [10, 15, 20],
        '变量2': [5, 8, 12],
        '变量3': [30, 25, 35]}
df = pd.DataFrame(data)

percentage_change = df.pct_change() * 100
rounded_percentage_change = percentage_change.round(2)

print(rounded_percentage_change)