diff --git a/mathgenerator/funcs/basic_math/__init__.py b/mathgenerator/funcs/basic_math/__init__.py
index 1ec3ede..c003f1c 100644
--- a/mathgenerator/funcs/basic_math/__init__.py
+++ b/mathgenerator/funcs/basic_math/__init__.py
@@ -14,6 +14,7 @@ from .greatest_common_divisor import *
 from .is_prime import *
 from .multiplication import *
 from .percentage import *
+from .percentage_difference import *
 from .percentage_error import *
 from .power_of_powers import *
 from .square import *
diff --git a/mathgenerator/funcs/misc/__init__.py b/mathgenerator/funcs/misc/__init__.py
index 5ea41d1..a7be655 100644
--- a/mathgenerator/funcs/misc/__init__.py
+++ b/mathgenerator/funcs/misc/__init__.py
@@ -19,10 +19,10 @@ from .is_leap_year import *
 from .lcm import *
 from .minutes_to_hours import *
 from .prime_factors import *
+from .product_of_scientific_notations import *
 from .profit_loss_percent import *
 from .quotient_of_power_same_base import *
 from .quotient_of_power_same_power import *
 from .set_operation import *
 from .signum_function import *
 from .surds_comparison import *
-from .product_of_scientific_notations import *