-57.53% is the change from 817 to 347
Calculation steps:
[( 347 - 817 ) ÷ 817] x 100 = -57.53%
Formula
Percentage change = [(347 - 817) / 817] x 100
Subtract the new number by the original number
347 - 817 = -470
-470 ÷ 817 = -0.5752753977968176
-0.5752753977968176 x 100 = -57.53%