public OnPluginStart()
{
HookEvent("round_start", round_start);
HookEvent("round_end", round_end);
}

public round_start(Handle:event, const String:name[], bool:dontBroadcast)
{
new client = GetClientOfUserId(GetEventInt(event, "userid"));
money_start[client] = GetEntProp(client, Prop_Send, "m_iAccount", 4);
BackMoney(client);
}

public BackMoney(client)
{
money_now[client] = money_start[client] - money_end[client];
SetEntProp(client, Prop_Send, "m_iAccount", money_now[client]);
}

public round_end(Handle:event, const String:name[], bool:dontBroadcast)
{
new client = GetClientOfUserId(GetEventInt(event, "userid"));
money_end[client] = GetEntProp(client, Prop_Send, "m_iAccount");
}

#include <sourcemod>

new m_iAccount;

new RoundStartMoney[MAXPLAYERS + 1],
RoundEndMoney[MAXPLAYERS + 1];

public OnPluginStart()
{
m_iAccount = FindSendPropOffs("CCSPlayer", "m_iAccount");

HookEvent("round_start", Event_OnRoundStart);
HookEvent("round_end", Event_OnRoundStart);

RegConsoleCmd("different", CallBack);
}

public Event_OnRoundStart(Handle:event, const String:name[], bool:silent)
{
GetMoneyPlayersStart();
}

public Event_OnRoundEnd(Handle:event, const String:name[], bool:silent)
{
GetMoneyPlayersEnd();
}

public Action:CallBack(client, args)
{
PrintToConsole(client, "# | Name | RoundStartMoney | RoundEndMoney | Different");

for (new i = 1; i <= MaxClients; i++)
{
if (IsClientInGame(i))
{
PrintToConsole(client, "%d. %N %d %d %d", i, i, RoundStartMoney[i], RoundEndMoney[i], RoundStartMoney[i] - RoundEndMoney[i]);
}
}
return Plugin_Handled;
}

public GetMoneyPlayersStart()
{
for (new i = 1; i <= MaxClients; i++)
{
if (IsClientInGame(i))
{
RoundStartMoney[i] = GetEntData(i, m_iAccount, 4);
}
}
}

public GetMoneyPlayersEnd()
{
for (new i = 1; i <= MaxClients; i++)
{
if (IsClientInGame(i))
{
RoundEndMoney[i] = GetEntData(i, m_iAccount, 4);
}
}
}