How to limit the decimal to $set in the other field by 2?

Forms\Components\TextInput::make('copy_interest')
                                ->label('Interest')
                                ->dehydrated()
                                ->numeric()
                                ->live(onBlur: true)
                                ->afterStateUpdated(function ($state, $get, $set) {
                                    $loanAmount = $get('loan_amount');
                                    $terms = $get('terms');
                                    $termsTotal = $terms + $state;
                                    $total1 = $termsTotal * 0.01;
                                    $interestTotal = $loanAmount * $total1;
                                    $set('interest', (double) $interestTotal);
                                }),

Forms\Components\TextInput::make('copy_interest')
                                ->label('Interest')
                                ->dehydrated()
                                ->numeric()
                                ->live(onBlur: true)
                                ->afterStateUpdated(function ($state, $get, $set) {
                                    $loanAmount = $get('loan_amount');
                                    $terms = $get('terms');
                                    $termsTotal = $terms + $state;
                                    $total1 = $termsTotal * 0.01;
                                    $interestTotal = $loanAmount * $total1;
                                    $set('interest', (double) $interestTotal);
                                }),