-15.05% is the change from 997 to 847
Calculation steps:
[( 847 - 997 ) ÷ 997] x 100 = -15.05%
Formula
Percentage change = [(847 - 997) / 997] x 100
Subtract the new number by the original number
847 - 997 = -150
-150 ÷ 997 = -0.15045135406218657
-0.15045135406218657 x 100 = -15.05%