-76.05% is the change from 693 to 166
Calculation steps:
[( 166 - 693 ) ÷ 693] x 100 = -76.05%
Formula
Percentage change = [(166 - 693) / 693] x 100
Subtract the new number by the original number
166 - 693 = -527
-527 ÷ 693 = -0.7604617604617605
-0.7604617604617605 x 100 = -76.05%