-67.65% is the change from 612 to 198
Calculation steps:
[( 198 - 612 ) ÷ 612] x 100 = -67.65%
Formula
Percentage change = [(198 - 612) / 612] x 100
Subtract the new number by the original number
198 - 612 = -414
-414 ÷ 612 = -0.6764705882352942
-0.6764705882352942 x 100 = -67.65%