-64.88% is the change from 991 to 348
Calculation steps:
[( 348 - 991 ) ÷ 991] x 100 = -64.88%
Formula
Percentage change = [(348 - 991) / 991] x 100
Subtract the new number by the original number
348 - 991 = -643
-643 ÷ 991 = -0.6488395560040363
-0.6488395560040363 x 100 = -64.88%