wrote 4 records of 32 bytes
file size 128 bytes = 4 records
record at index 2:
  #3 Citra Dewi Lestari   4.0 kg  Rp  24000
all records after the change:
  #1 Andi Pratama         3.5 kg  Rp  24500
  #2 Budi Santoso         2.0 kg  Rp  20000
  #3 Citra Dewi Lestari   4.0 kg  Rp  21600
  #4 Dewi Anggraini       5.5 kg  Rp  38500
