-64.98% is the change from 991 to 347
Calculation steps:
[( 347 - 991 ) ÷ 991] x 100 = -64.98%
Formula
Percentage change = [(347 - 991) / 991] x 100
Subtract the new number by the original number
347 - 991 = -644
-644 ÷ 991 = -0.649848637739657
-0.649848637739657 x 100 = -64.98%