Ignoring the nights that rolled over from 2020, the nights you stay in 2021 in excess of 30 will rollover to assist you in achieving status in 2022.
From hiltonhonors:
Elite Rollover Nights are calculated as follows to apply to the next qualifying status year: Total qualifying nights at year end (inclusive of rollover from prior year) – any elite rollover nights from the previous year (now expired) – qualifying nights needed to renew your current elite status tier = elite rollover nights for next year
In your example,
54 nights rollover from 2020
114 nights in 2021 subtract 54 rollover from 2020 and subtract 30 nights nights to renew for 2021 = 30 rollover
See this thread from last month:
Retaining Diamond in 2022
See post 10 below.