Since 1 Pakistani Rupee is equal to 0.06440188142109494 South African Rand, we could say that n Pakistani Rupees are equal to 0.06440188142109494 times n South African Rand. In other words, we could use the following formula:
South African Rand = Pakistani Rupees x 0.06440188142109494
For example, let's say that we want to convert 2.0 Pakistani Rupees to South African Rand. Then, we just replace Pakistani Rupees in the abovementioned formula with 2.0:
South African Rand = 2.0 x 0.06440188142109494
That is, 2.0 Pakistani Rupees are equal to 0.1288037628421899 South African Rand.