-70.53% is the change from 207 to 61
Calculation steps:
[( 61 - 207 ) ÷ 207] x 100 = -70.53%
Formula
Percentage change = [(61 - 207) / 207] x 100
Subtract the new number by the original number
61 - 207 = -146
-146 ÷ 207 = -0.7053140096618358
-0.7053140096618358 x 100 = -70.53%