-68.72% is the change from 633 to 198
Calculation steps:
[( 198 - 633 ) ÷ 633] x 100 = -68.72%
Formula
Percentage change = [(198 - 633) / 633] x 100
Subtract the new number by the original number
198 - 633 = -435
-435 ÷ 633 = -0.6872037914691943
-0.6872037914691943 x 100 = -68.72%