There are two candidates $\mathrm{P}$ and $\mathrm{Q}$ in an election. During the campaign, $40 \%$ of the voters promised to vote for $\mathrm{P}$, and rest for $\text{Q}$. However, on the day of election $15 \%$ of the voters went back on their promise to vote for $\mathrm{P}$ and instead voted for $\text{Q}$. $25 \%$ of the voters went back on their promise to vote for $\mathrm{Q}$ and instead voted for $\mathrm{P}$. Suppose, $\mathrm{P}$ lost by $2$ votes, then what was the total number of voters?
- $100$
- $110$
- $90$
- $95$