-70.32% is the change from 630 to 187
Calculation steps:
[( 187 - 630 ) ÷ 630] x 100 = -70.32%
Formula
Percentage change = [(187 - 630) / 630] x 100
Subtract the new number by the original number
187 - 630 = -443
-443 ÷ 630 = -0.7031746031746032
-0.7031746031746032 x 100 = -70.32%