-75.11% is the change from 663 to 165
Calculation steps:
[( 165 - 663 ) ÷ 663] x 100 = -75.11%
Formula
Percentage change = [(165 - 663) / 663] x 100
Subtract the new number by the original number
165 - 663 = -498
-498 ÷ 663 = -0.751131221719457
-0.751131221719457 x 100 = -75.11%