-69.72% is the change from 634 to 192
Calculation steps:
[( 192 - 634 ) ÷ 634] x 100 = -69.72%
Formula
Percentage change = [(192 - 634) / 634] x 100
Subtract the new number by the original number
192 - 634 = -442
-442 ÷ 634 = -0.6971608832807571
-0.6971608832807571 x 100 = -69.72%