-82.22% is the change from 343 to 61
Calculation steps:
[( 61 - 343 ) ÷ 343] x 100 = -82.22%
Formula
Percentage change = [(61 - 343) / 343] x 100
Subtract the new number by the original number
61 - 343 = -282
-282 ÷ 343 = -0.8221574344023324
-0.8221574344023324 x 100 = -82.22%