-38.3% is the change from 342 to 211
Calculation steps:
[( 211 - 342 ) ÷ 342] x 100 = -38.3%
Formula
Percentage change = [(211 - 342) / 342] x 100
Subtract the new number by the original number
211 - 342 = -131
-131 ÷ 342 = -0.3830409356725146
-0.3830409356725146 x 100 = -38.3%