-36.15% is the change from 993 to 634
Calculation steps:
[( 634 - 993 ) ÷ 993] x 100 = -36.15%
Formula
Percentage change = [(634 - 993) / 993] x 100
Subtract the new number by the original number
634 - 993 = -359
-359 ÷ 993 = -0.36153071500503525
-0.36153071500503525 x 100 = -36.15%