-59.63% is the change from 857 to 346
Calculation steps:
[( 346 - 857 ) ÷ 857] x 100 = -59.63%
Formula
Percentage change = [(346 - 857) / 857] x 100
Subtract the new number by the original number
346 - 857 = -511
-511 ÷ 857 = -0.5962660443407235
-0.5962660443407235 x 100 = -59.63%