-85.46% is the change from 997 to 145
Calculation steps:
[( 145 - 997 ) ÷ 997] x 100 = -85.46%
Formula
Percentage change = [(145 - 997) / 997] x 100
Subtract the new number by the original number
145 - 997 = -852
-852 ÷ 997 = -0.8545636910732196
-0.8545636910732196 x 100 = -85.46%