-37.86% is the change from 346 to 215
Calculation steps:
[( 215 - 346 ) ÷ 346] x 100 = -37.86%
Formula
Percentage change = [(215 - 346) / 346] x 100
Subtract the new number by the original number
215 - 346 = -131
-131 ÷ 346 = -0.3786127167630058
-0.3786127167630058 x 100 = -37.86%