-76.81% is the change from 634 to 147
Calculation steps:
[( 147 - 634 ) ÷ 634] x 100 = -76.81%
Formula
Percentage change = [(147 - 634) / 634] x 100
Subtract the new number by the original number
147 - 634 = -487
-487 ÷ 634 = -0.7681388012618297
-0.7681388012618297 x 100 = -76.81%