Alter contribution configuration

This is requested by policy to better suit the market.

config/config.yml

@@ -5,13 +5,13 @@ salary_thresholds:
 contribution_percentages:
   current:
     employee:
-      below_threshold: 5
-      above_threshold: 5
+      below_threshold: 4
+      above_threshold: 4
     employer: 
       below_threshold: 0
       above_threshold: 3
     tax_relief: 20
-    combined_minimum: 8
+    combined_minimum: 7
 
 frequency_conversions:
   salary_frequencies:

features/_your_contributions/contribution_validation.feature

@@ -74,4 +74,4 @@ Scenario Outline: Adds up to less than 8%
     | Minimum                 | 1.5              | 3.0              |
     | Minimum                 | 3.0              | 3.0              |
     | Minimum                 | 2.5              | 4.0              |
-    | Minimum                 | 2.0              | 5.0              |
+    | Minimum                 | 1.0              | 5.0              |

features/_your_contributions/percent_validation.feature

@@ -17,9 +17,9 @@ Scenario Outline: minimum contribution percentage on salary less than £6,032
 
   Examples:
     | message                                                     | employee_default |
-    | At your salary level there is no legal minimum contribution | 5.0              |
+    | At your salary level there is no legal minimum contribution | 4.0              |
 
   @welsh
   Examples:
     | message                                           | employee_default |
-    | Ar eich lefel cyflog, nid oes isafswm cyfreithiol | 5.0              |
+    | Ar eich lefel cyflog, nid oes isafswm cyfreithiol | 4.0              |

features/_your_results/contribution_above_legal_minimum.feature

@@ -25,7 +25,7 @@ Feature:
       When I move on to the results page
       Then I should see the values on the results page as:
         |                          | Now     |
-        | Employee Contributions   | £57.33  |
-        | Including tax relief of  | £11.47  |
+        | Employee Contributions   | £45.87  |
+        | Including tax relief of  | £9.17   |
         | Employer Contributions   | £57.33  |
-        | TOTAL Contributions      | £114.66 |
+        | TOTAL Contributions      | £103.20 |

spec/models/full_contribution_calculator_spec.rb

@@ -19,15 +19,15 @@
       let(:salary_per_year) { 5_000 }
 
       it 'returns 5' do
-        expect(subject.employee_percent).to eq(5)
+        expect(subject.employee_percent).to eq(4)
       end
     end
 
     context 'yearly salary greater than or equal to Lower Earnings Threshold' do
       let(:salary_per_year) { 6_032 }
 
       it 'returns 5' do
-        expect(subject.employee_percent).to eq(5)
+        expect(subject.employee_percent).to eq(4)
       end
     end
   end

spec/models/minimum_contribution_calculator_spec.rb

@@ -27,7 +27,7 @@
 
   describe '#employee_percent' do
     it 'returns 5' do
-      expect(subject.employee_percent).to eq(5)
+      expect(subject.employee_percent).to eq(4)
     end
   end
 

spec/models/your_contributions_form_spec.rb

@@ -5,18 +5,18 @@
 
   describe 'minimum combined contributions validation' do
     context 'successful' do
-      it 'passes when the sum of employee and employer percents is GTE to 8' do
+      it 'passes when the sum of employee and employer percents is GTE to 7' do
         subject.employee_percent = 2.0
-        subject.employer_percent = 6.0
+        subject.employer_percent = 5.0
 
         expect(subject.valid?).to be_truthy
       end
     end
 
     context 'failure' do
-      it 'fails when the sum of employee and employer percents is below 8' do
+      it 'fails when the sum of employee and employer percents is below 7' do
         subject.employee_percent = 1.0
-        subject.employer_percent = 6.0
+        subject.employer_percent = 5.0
 
         expect(subject.valid?).to be_falsey
       end