-32.17% is the change from 948 to 643
Calculation steps:
[( 643 - 948 ) ÷ 948] x 100 = -32.17%
Formula
Percentage change = [(643 - 948) / 948] x 100
Subtract the new number by the original number
643 - 948 = -305
-305 ÷ 948 = -0.3217299578059072
-0.3217299578059072 x 100 = -32.17%