Problem: if a man lost 5 % by selling oranges at the rate of 8 a rupee at how many a rupee must he sell them to gain 52 % ?
Rationale: "95 % - - - - 8 152 % - - - - ? 95 / 152 * 8 = 5 answer : a"
annotated_formula: divide(multiply(subtract(const_100, 5), 8), add(const_100, 52))