-85.34% is the change from 348 to 51
Calculation steps:
[( 51 - 348 ) ÷ 348] x 100 = -85.34%
Formula
Percentage change = [(51 - 348) / 348] x 100
Subtract the new number by the original number
51 - 348 = -297
-297 ÷ 348 = -0.853448275862069
-0.853448275862069 x 100 = -85.34%