-74.44% is the change from 630 to 161
Calculation steps:
[( 161 - 630 ) ÷ 630] x 100 = -74.44%
Formula
Percentage change = [(161 - 630) / 630] x 100
Subtract the new number by the original number
161 - 630 = -469
-469 ÷ 630 = -0.7444444444444445
-0.7444444444444445 x 100 = -74.44%