Mathematics & Science (optional block)

7% of 2492?

854 decreased by 11%. New value?

13% of 2232?

477 increased by 8%. New value?

2973 increased by 18%. New value?

21% of 1660?

9% of 1504?

160% rise then 160% fall. Net % change?

23% of 1348?

11% of 2544?

1153 increased by 8%. New value?

1634 decreased by 19%. New value?

21% of 984?

1309 increased by 20%. New value?

25% of 1712?

3025 increased by 22%. New value?

269 increased by 18%. New value?

2934 decreased by 15%. New value?

1894 decreased by 13%. New value?

1790 decreased by 5%. New value?

1426 decreased by 29%. New value?

334 decreased by 23%. New value?

72% rise then 72% fall. Net % change?

3233 increased by 12%. New value?

184% rise then 184% fall. Net % change?