Use `mult_and_round` instead of `Evaluate` in keywords

@@ -270,8 +270,8 @@ Resource           resource.robot
 
 Можливість змінити на ${percent} відсотки бюджет ${lot_index} лоту
   ${percent}=  Convert To Number  ${percent}
-  ${value}=  Evaluate  round(${USERS.users['${tender_owner}'].tender_data.data.lots[${lot_index}].value.amount} * ${percent} / ${100}, 2)
-  ${step_value}=  Evaluate  round(${USERS.users['${tender_owner}'].tender_data.data.lots[${lot_index}].minimalStep.amount} * ${percent} / ${100}, 2)
+  ${value}=  mult_and_round  ${USERS.users['${tender_owner}'].tender_data.data.lots[${lot_index}].value.amount}  ${percent}  ${1/100}  precision=2
+  ${step_value}=  mult_and_round  ${USERS.users['${tender_owner}'].tender_data.data.lots[${lot_index}].minimalStep.amount}  ${percent}  ${1/100}  precision=2
   Можливість змінити поле value.amount ${lot_index} лоту на ${value}
   Можливість змінити поле minimalStep.amount ${lot_index} лоту на ${step_value}
 
@@ -822,7 +822,7 @@ Resource           resource.robot
   ${percent}=  Convert To Number  ${percent}
   ${field}=  Set variable if  ${number_of_lots} == 0  value.amount  lotValues[0].value.amount
   ${value}=  Run As  ${username}  Отримати інформацію із пропозиції  ${TENDER['TENDER_UAID']}  ${field}
-  ${value}=  Evaluate  round(${value} * ${percent} / 100, 2)
+  ${value}=  mult_and_round  ${value}  ${percent}  ${1/100}  precision=2
   Run as  ${username}  Змінити цінову пропозицію  ${TENDER['TENDER_UAID']}  ${field}  ${value}
 
 

 # -*- coding: utf-8 -
+import operator
 from .local_time import get_now, TZ
 from copy import deepcopy
 from datetime import timedelta
@@ -461,6 +462,10 @@ def generate_test_bid_data(tender_data):
     return bid
 
 
+def mult_and_round(*args, **kwargs):
+    return round(reduce(operator.mul, args), kwargs.get('precision', 2))
+
+
 # GUI Frontends common
 def add_data_for_gui_frontends(tender_data):
     now = get_now()